When two women are found dead dressed as fairytale characters, Castle and Beckett must race to find the killer before he strikes again.
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Castle and Beckett discover evidence that links a young woman's murder to Sen. William H. Bracken (Jack Coleman) -- the man responsible for the murder of Beckett's mother; Beckett faces complications as she tries to finally bring Bracken to justice.
A desperate murder suspect with a hostage insists on negotiating with Castle.
When a woman who looks very similar to Lanie is murdered, the team thinks the killer may be targeting members of the 12th precinct.
When a well-known relationship therapist is murdered, it seems that she was targeted due to the secrets she knew about her powerful and elite clients.
As Castle and Beckett investigate the ritualistic murder of a young woman, they find strange symbols in the victim's apartment; Castle struggles with Alexis' decision to move in with Pi.
Alexis asks Castle for help proving a death row inmate's innocence 72 hours before his execution, but they uncover a secret that could seal the man's fate.
A suspect (Joshua Gomez) in a grisly murder claims he has traveled back in time to prevent terrible events from unfolding.
Castle and Beckett have their lead and are ready to face LokSat, but an unexpected twist puts everything in danger.
Castle thinks the Antichrist may be involved in the death of an axe-wielding, psychiatric inmate who drops dead in the P.I. office.
When a movie star turned stage actor is mysteriously killed, Castle and Beckett go backstage and discover he had more than his lines to worry about.
After a meek city safety inspector survives being poisoned, he tries to help Castle and Beckett with the investigation.
When Hayley finds herself being implicated in a cyber-terror attack after doing an old friend a favor, Castle and Beckett rush to clear her name.
Castle and Beckett search for a stolen antique that may have been Aladdin's lamp in the hope it will lead them to a smuggler's murderer.
Investigation into the death of an armored-car driver leads Beckett and Castle to one of Esposito's old cases.
Beckett and the team return to the NYPD academy training ground to investigate the murder of a recruit officer; Castle struggles with a consequential decision for him and Beckett.
Castle goes to Los Angeles in hopes of finding answers about the time he cannot remember, but ends up in danger when he is recruited by the Greatest Detective Society.
When a student who takes English as a second language is murdered, Castle goes under cover and learns unexpected information about the victim.
Castle is abducted and forced to solve deranged puzzles and mind games with strangers; Beckett and the 12th precinct race to save Castle.
The son of a Russian diplomat is murdered; during the investigation, Castle entertains a jovial Russian security guard, who turns out to be more involved in the case than expected.
When Castle takes the stand as the key witness to a murder, new information suddenly arises, forcing Beckett to race to prevent a miscarriage of justice.
When a corpse is discovered in the theater of Martha's latest show, Castle and Beckett's investigation reveals surprising details about the world of competitive a capella.
Castle and Beckett find themselves trapped at sea with a killer when they investigate the murder of a cruise ship entertainer.
The brutal murder of a lothario prompts an investigation into New York's elite; Castle plans a surprise for Beckett in honor of their first wedding anniversary.
Detective Slaughter (Adam Baldwin) asks Castle for help solving a high-stakes robbery case; a corpse connected to the case makes Slaughter look guilty.
When a priceless piece of art is stolen during transport, Castle and Beckett work with a witness to track down the culprit.
Castle is determined to figure out who murdered his idol, a reclusive author, but the truth seems to be stranger than fiction.
Castle poses as a college professor so he can investigate a student's gruesome murder; Beckett and Castle find out that the university is hiding dark secrets.
Beckett receives a mysterious tip and is launched into a fight for her life with mercenaries on her trail; Castle tries to determine why his wife is on the run.
A call from a mysterious stranger ignites an explosive chain of events; the story is told from Castle's perspective as he searches for Beckett.
An investigation into a death in the woods brings Castle back to a traumatic event from his childhood, leading to an obsessive search for answers; Beckett faces a crossroads.
When Castle and Beckett investigate the death of the creator of a long-running sketch show, they discover a secret that could explain his murder.
When an air marshal is murdered on Alexis and Castle's flight to London, the father-daughter duo must find the killer before he can carry out his plan.
A mysterious recurring dream inspires Castle and Beckett to look for answers about Castle's two-month disappearance; their search for the truth turns dangerous.
Beckett and Castle are faced with a large list of possible suspects when a personal injury attorney known as Richie Falco is murdered; a shocking secret deepens the mystery surrounding Richie's death.
Detective Ryan ends up in the middle of an assassination plot when he is on the security detail of a charismatic congressman; Castle and Beckett help Ryan investigate.
A competitive detective from Hong Kong with information on a murder victim teams up with Beckett and Castle; Beckett discovers information that implies the detective -- and the murder victim -- may not be what they seem.
An astronaut is killed inside a Mars simulation; Castle and Beckett make a discovery that results in a shocking turn in the case.
The stakes are raised as the 12th precinct tries to stop Dr. Kelly Nieman and Jerry Tyson -- also known as 3XK -- before they claim another victim.
Castle is asked to consult on a case when evidence in a young woman's murder implicates Dr. Kelly Neiman (Annie Wersching) -- Castle and Beckett's nemesis.
A woman hires Castle to see if her husband is cheating on her -- but things take a shocking turn when Castle witnesses the murder of his client.
Beckett and the team investigate the death of a young telenovela actress; Castle is hired as a private investigator to look into the murder from another angle.
Unable to work alongside Kate or the 12th Precinct, Castle gets his private investigator license and shows up unannounced at a crime scene.
Castle and Beckett discover an ER doctor who was gunned down in the street was a mob doctor to a mafia family with ties to Castle; Esposito and Lanie reach an important moment in their relationship.
The star of Castle's favorite '80s action film is murdered; a team of aging action heroes helps Castle and Beckett investigate.
Esposito is among subway passengers taken hostage by a mysterious gunman, leaving Castle, Beckett and the team to uncover the assailant's agenda.
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Castle and Beckett go under cover as newlyweds at an Old West-style resort to investigate a murder by poisoning.
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An investigation forces Castle into what seems like an alternate world where he and Beckett never met; Castle and Beckett take a trip to the altar.
Castle and Beckett investigate the murder of an Internet celebrity; when pictures of the crime scene show up on a photo sharing website, the investigators worry the killer may strike again.
Castle goes under cover at an elementary school to try to find a student who may have information about the shooting of an ice cream vendor.
The investigation into the death of a pool shark reveals that the killer may have had paranormal powers; Castle and Beckett try to get back to normal.
As the team investigates the murder of a toy company CEO, Castle engages in a dangerous investigation of his own.
Kate Beckett is faced with the toughest case of her career after finding Castle's car engulfed in flames.
When a surprise threatens to spoil Castle and Beckett's wedding day, they must set out on a wild mission filled with masked men and angry bikers.
Beckett's secret investigation into her mother's death goes awry when a man she has been watching is killed.
Castle and Beckett delve into the world of extreme sports when a mysterious motorcyclist shoots an up-and-coming professional skateboarder.
When construction workers find the body of a missing mobster, Castle and Beckett must play into the delusions of the only witness in order to solve the murder.
An investigation into the murder of a Wall Street trader takes a shocking turn when Castle and Beckett discover Gates' estranged sister is involved.
When Castle and Beckett investigate the mysterious murder of a Japanese ballet dancer, they end up being targeted by a ninja assassin.
Beckett is asked to assist with a narcotics investigation; when a routine undercover operation goes awry, Beckett must face dangerous men from the New York underworld.
A guilt-ridden woman confesses to a murder, but contradictory evidence and a second confession complicate the case.
Castle and Beckett investigate the case of a high school mean girl who appears to have been killed by someone with telekinetic powers.
When an employee at a fashion magazine is found dead, Castle and Beckett must dive into the world of high fashion to investigate; Beckett's history in the modeling world earns her access to a wedding surprise.
When a pop star is found dead in an alley, Beckett and Castle look into her hard-partying lifestyle; a shocking revelation rocks the investigation.
The murder of a video store clerk with a secret history leads the team to Castle's father (James Brolin).
Castle and Beckett suspect a serial arsonist of murder; Jenny goes into labor.
A dying man leaves a baby with a priest; Castle and Beckett end up taking care of the baby while they investigate.
When a woman who looks very similar to Lanie is murdered, the team thinks the killer may be targeting members of the 12th precinct.
When a well-known relationship therapist is murdered, it seems that she was targeted due to the secrets she knew about her powerful and elite clients.
Alexis asks Castle for help proving a death row inmate's innocence 72 hours before his execution, but they uncover a secret that could seal the man's fate.
As Castle and Beckett investigate the ritualistic murder of a young woman, they find strange symbols in the victim's apartment; Castle struggles with Alexis' decision to move in with Pi.
A suspect (Joshua Gomez) in a grisly murder claims he has traveled back in time to prevent terrible events from unfolding.
A desperate murder suspect with a hostage insists on negotiating with Castle.
Agents Beckett and McCord arrive to take over Castle and the guys' investigation into the death of a former child star, creating tension in the precinct.
Beckett races to find a stolen toxin capable of killing thousands of people; Castle has less than 24 hours to live after being exposed to the chemical weapon.
Beckett and Castle face the consequences of their decisions during a high-stakes investigation.
Agents Beckett and McCord arrive to take over Castle and the guys' investigation into the death of a former child star, creating tension in the precinct.
An interview with a federal law enforcement agency forces Beckett to reconsider her career and her relationship with Castle; a young woman's body is found inside a flop house's water tank.
Beckett races to find a stolen toxin capable of killing thousands of people; Castle has less than 24 hours to live after being exposed to the chemical weapon.
When a government whistleblower is murdered, Beckett and Castle must figure out who is responsible and determine why Homeland Security is trying to take over the case.
Beckett and Castle face the consequences of their decisions during a high-stakes investigation.
When Beckett steps on a pressure-sensitive bomb, the team searches for a way to save her while Castle distracts her by talking about their relationship.
An interview with a federal law enforcement agency forces Beckett to reconsider her career and her relationship with Castle; a young woman's body is found inside a flop house's water tank.
When Beckett is tasked with protecting a charming billionaire whose life is in danger, she reflects on her relationship with Castle; consumed with jealousy, Castle tries to solve the case as quickly as possible.
Beckett and Castle discover giant footprints at the site of a vicious murder, leading the team to wonder if Bigfoot is the killer.
When a government whistleblower is murdered, Beckett and Castle must figure out who is responsible and determine why Homeland Security is trying to take over the case.
While stuck at home with a broken leg, Castle believes he witnesses a murder in the apartment across the street.
When Beckett steps on a pressure-sensitive bomb, the team searches for a way to save her while Castle distracts her by talking about their relationship.
When a body is discovered in an industrial cake mixer, the murder is traced to an Irish gang and a bar owner named Siobhan O'Doul (Cara Buono); Detective Ryan reveals a history with Siobhan from his time working under cover in narcotics.
When Beckett is tasked with protecting a charming billionaire whose life is in danger, she reflects on her relationship with Castle; consumed with jealousy, Castle tries to solve the case as quickly as possible.
Castle and Beckett tackle one of their creepiest cases yet when a woman appears to have been scared to death by a ``haunted`` DVD; Castle fears for his life after he accidentally watches the video.
Castle and Beckett are thrust into New York's raucous music industry as they investigate the murder of an up-and-coming DJ; Esposito takes a troubled teen under his wing.
Beckett and Castle discover giant footprints at the site of a vicious murder, leading the team to wonder if Bigfoot is the killer.
While stuck at home with a broken leg, Castle believes he witnesses a murder in the apartment across the street.
After the FBI fails to get Alexis back, Castle takes matters into his own hands; Castle learns that his daughter's kidnapping may be a part of a larger and more sinister agenda.
When a body is discovered in an industrial cake mixer, the murder is traced to an Irish gang and a bar owner named Siobhan O'Doul (Cara Buono); Detective Ryan reveals a history with Siobhan from his time working under cover in narcotics.
A murder investigation reveals a plot to kidnap a wealthy businessman's daughter; FBI Agent Harris (Dylan Walsh) helps Castle and Beckett investigate.
The young rising star of ``The Wives of Wall Street`` is murdered; Castle tries to give Beckett a Valentine's Day gift, but his plans go awry.
Castle and Beckett discover evidence that links a young woman's murder to Sen. William H. Bracken (Jack Coleman) -- the man responsible for the murder of Beckett's mother; Beckett faces complications as she tries to finally bring Bracken to justice.
Castle and Beckett are thrust into New York's raucous music industry as they investigate the murder of an up-and-coming DJ; Esposito takes a troubled teen under his wing.
Several angry ex-husbands come under suspicion when a divorce attorney who only represented women is murdered; when Alexis gets sick, Castle's ex-wife moves into the loft to take care of her.
Castle and Beckett investigate when a bearded man named Kriss Kringle falls from the sky in Central Park; Beckett and Castle work on a Christmas list together.
While retrieving a murder witness, Castle and Beckett are ambushed, forcing them to take the witness on the run.
Castle and Beckett tackle one of their creepiest cases yet when a woman appears to have been scared to death by a ``haunted`` DVD; Castle fears for his life after he accidentally watches the video.
A documentary crew follows Castle, Beckett and the team as they investigate the murder of a rock band's lead guitarist.
As Beckett and Castle investigate a murder at a sci-fi convention, they encounter avid fans in costume, egotistical celebrities and a lot of drama.
After the FBI fails to get Alexis back, Castle takes matters into his own hands; Castle learns that his daughter's kidnapping may be a part of a larger and more sinister agenda.
The investigation into a ritualistic murder turns up evidence linking Castle to the crime, leading Beckett to wonder how well she really knows him.
A murder investigation reveals a plot to kidnap a wealthy businessman's daughter; FBI Agent Harris (Dylan Walsh) helps Castle and Beckett investigate.
Castle's plans with Beckett are disrupted when a dying man stumbles into his backyard and collapses in his pool.
The young rising star of ``The Wives of Wall Street`` is murdered; Castle tries to give Beckett a Valentine's Day gift, but his plans go awry.
When a woman is murdered, Castle and Beckett think a repossessed storage unit may have a connection to her death.
The investigation into a ritualistic murder turns up evidence linking Castle to the crime, leading Beckett to wonder how well she really knows him.
On Beckett's first day back from suspension, she and Castle investigate a weathercaster's death, and try to hide their relationship from their co-workers.
Castle's plans with Beckett are disrupted when a dying man stumbles into his backyard and collapses in his pool.
Castle and Beckett set aside questions about their relationship in order to take on the forces responsible for the murder of Beckett's mother.
When a woman is murdered, Castle and Beckett think a repossessed storage unit may have a connection to her death.
On Beckett's first day back from suspension, she and Castle investigate a weathercaster's death, and try to hide their relationship from their co-workers.
Castle tries to protect Beckett as she pursues the man who shot her; the 12th precinct is forever changed as feelings and secrets are revealed.
Castle and Beckett set aside questions about their relationship in order to take on the forces responsible for the murder of Beckett's mother.
When a dead man is found with human bite marks on his body, a witness claims the deceased was attacked by a zombie.
Castle tries to protect Beckett as she pursues the man who shot her; the 12th precinct is forever changed as feelings and secrets are revealed.
Castle takes on Detective Ethan Slaughter (Adam Baldwin) as his partner when tension between himself and Beckett rises, and he sees a new side to police work that puts him in danger.
When a dead man is found with human bite marks on his body, a witness claims the deceased was attacked by a zombie.
An attractive detective from Scotland Yard (Brett Tucker) teams up with Castle and Beckett to investigate the murder of his friend's daughter; Lanie tries to talk Beckett into making a move on Castle.
Castle takes on Detective Ethan Slaughter (Adam Baldwin) as his partner when tension between himself and Beckett rises, and he sees a new side to police work that puts him in danger.
When a bomb kills five people at a protest rally, Beckett and Castle try to solve the case by reconstructing the 47 seconds prior to the explosion.
The investigation into the death of a contestant on a popular dance competition show leads Castle and Beckett to a shocking secret that may have led to her death.
When two women are found dead dressed as fairytale characters, Castle and Beckett must race to find the killer before he strikes again.
Beckett and Castle must stop a series of events that could result in a war.
Castle and Beckett discover that the killer they are pursuing is part of an international conspiracy, and they must work with a CIA agent with whom Castle has a history.
Castle and Beckett must investigate a mysterious case from 1947 in order to solve the present-day murder of a treasure hunter.
The investigation into the death of a famous dog trainer leads to a reality-TV star.
When a woman is found dead in her car, the investigation leads to New York Mayor Robert Weldon (Derek Webster), one of Castle's longtime friends.
When Castle and Beckett investigate the death of a ladies' man, a twist in the case may disrupt Ryan's wedding.
Beckett and Castle wake up handcuffed together in bed in a locked room with no memory of how they got there.
The team searches for a sniper who is terrorizing New York; Beckett tries to hide her worsening condition from Castle and the detectives.
An attractive detective from Scotland Yard (Brett Tucker) teams up with Castle and Beckett to investigate the murder of his friend's daughter; Lanie tries to talk Beckett into making a move on Castle.
When a casino owner is murdered at an abandoned warehouse, suspects emerge in New York and Atlantic City; during the investigation, Castle throws an impromptu bachelor party for Ryan.
When a bomb kills five people at a protest rally, Beckett and Castle try to solve the case by reconstructing the 47 seconds prior to the explosion.
Martha and Castle are held hostage by bank robbers dressed in hospital scrubs; Beckett's rescue efforts are hindered by a strict hostage negotiator (Dean Norris).
The investigation into the death of a contestant on a popular dance competition show leads Castle and Beckett to a shocking secret that may have led to her death.
Castle and Beckett investigate the murder of a ghost hunter who was looking into a haunting at a New York mansion.
When two women are found dead dressed as fairytale characters, Castle and Beckett must race to find the killer before he strikes again.
A sexy insurance investigator (Kristin Lehman) with a secret helps Castle and Beckett when a valuable sculpture is stolen and someone is murdered; a rich museum benefactor (Jessica Tuck) garners suspicion.
When a young woman is shot to death, Beckett and Castle learn the gun used was the one a serial killer stole from Detective Ryan.
Castle and Beckett investigate a crime scene that involves a large pool of blood but no victim; Alexis receives news about Stanford.
Castle and Beckett suspect a costume-clad vigilante is responsible for the mysterious murder of an ex-con.
Detective Beckett struggles to survive; Castle tries to identify the shooter; Ryan and Esposito try to adjust to the new captain.
A professional hit man (Max Martini) with information about the murder of Beckett's mother escapes during a court hearing; Castle and the team uncover a deep conspiracy.
After a contestant in a beauty pageant is found strangled, many suspects turn up, including jealous fellow contestants, the pageant's sponsor (Michael McKean), and the show's host (Sasha Roiz).
Against orders, Beckett travels to Los Angeles while investigating her ex-partner's murder; Castle questions Beckett's motives.
Castle and Beckett investigate the death of a champion swimmer; authors Michael Connelly and Dennis Lehane give Castle advice.
When a reporter is found dead inside a pizza oven, Castle and Beckett try to determine why he was murdered.
A juror suddenly dies during a high-profile trial involving a murdered socialite.
When the head writer on a popular soap opera is killed with a fire axe, Castle is able to use his skills as an author to make a discovery about the killer.
Castle and Beckett must set aside their differences with Agent Fallon (Adrian Pasdar) while trying to prevent a city-wide catastrophe.
While investigating an apparent robbery/homicide, Beckett and Castle discover the victim was involved in a mysterious conspiracy; as the stakes rise, a federal agent (Adrian Pasdar) takes over the case.
An old friend of Castle's emerges as the prime suspect in his wife's murder.
The murder of a lottery winner leaves Castle and Beckett with a wealth of suspects; Martha must decide what to do with her inheritance.
The retired lead detective on Beckett's mother's homicide case is gunned down after telling her he has new information; Castle and Beckett's partnership grows stronger.
The owner of a historic magic shop is found dead in Houdini's water torture tank; a new romance comes to light.
When Castle's novel ``Heat Wave`` becomes a movie, actress Natalie Rhodes accepts Beckett's invitation to visit and learn about the character she will play; Natalie observes Castle and Beckett's investigation of the murder of a matchmaker.
When a bar owner's body is found in the East River, the investigation takes Castle and Beckett through the forgotten tunnels and passageways of turn-of-the-century New York; Castle considers buying a bar.
When a prominent astrophysicist is found dead in her car, Castle is led to theorize her death was the result of an alien abduction.
While investigating a subway worker's murder in Central Park, Castle and Beckett unexpectedly uncover a boy's abduction.
When Beckett and Castle respond to an ``officer down`` call, they discover the victim is actually a male stripper dressed as a cop.
When a beautiful woman is found dead, the evidence indicates a notorious serial killer known as ``The Triple Killer.``
An unknown woman falls out of a casket along with the original deceased when pallbearers lose control of the casket at a funeral; the investigation takes Beckett and Castle into the world of amorous, bed-hopping physicians.
A young mathematician is shot with a 200-year-old bullet, inspiring wild theories by Castle about a time-traveling murderer.
When a coded document attracts Castle's attention, Beckett must steer the case back to the violent felons who populated their victim's world; when Beckett's ex-partner arrives, Castle must watch the relationship become romantic.
Beckett and Castle search for a psychic's killer while debating the existence of extrasensory abilities.
When Beckett and her team burst into an apartment on a murderer's trail, they see Castle standing over a dead woman's body holding a gun; Beckett arrests Castle as he asserts his innocence.
Castle and Beckett investigate what seems to be an intelligence operative's assassination; Beckett's relationship with Demming strains her relationship with Castle.
A robbery-homicide prompts Beckett to invite Demming to assist on a case; the investigation becomes a competition for Beckett's attention.
A well-known chef is found frozen to death in the kitchen of a New York restaurant; Castle shares an attraction with a former classmate of Beckett's.
Castle and Beckett find that Esposito has a personal connection to a suspected killer; Beckett connects with an attractive new detective.
When talk show host Bobby Mann (Tom Bergeron) mysteriously dies, Castle is convinced that there was foul play; a guest on Bobby Mann's show (Kelly Carlson) seduces Castle.
The investigation into a museum curator's death takes a bizarre turn when Castle and Beckett learn he is not the first member of a recent archaeological expedition to die.
The serial killer, still at large, taunts Castle, Beckett and Shaw to catch him.
An accomplished and insightful federal investigator (Dana Delany) helps Castle and Beckett track down a serial killer.
When the body of a half-naked woman is found hanging by cuffs in a public park; the investigation takes Castle and Beckett into New York's underground world of sexual domination.
The murder of a former pro ballplayer upsets fans; Alexis' genealogy project forces Castle to contemplate the identity of his father.
A family discovers a dead man in the house; Castle becomes known as one of New York's most-eligible bachelors.
While investigating an Irish mobster's death, Beckett and Castle uncover a local turf war that may be connected to an infomercial guru and an international drug-smuggling operation; evidence causes the case to become personal for Beckett.
While investigating the death of a bridesmaid at a wedding, Castle runs into an old flame (Alyssa Milano).
When an art dealer is shot in his gallery, Castle and Beckett figure out that a bullet is missing from the crime scene.
Castle and Beckett have their hands full when two women -- a man's wife and his fiancee -- arrive to identify his body, found stuffed in a garbage chute.
Castle and Beckett invade the world of ex-cons and escorts while investigating an assistant district attorney's murder; Castle's daughter shares a secret with Beckett.
While investigating the murder of a bike messenger, Castle and Beckett try to uncover the scandals and secrets of a prominent family.
An apparently staged scene from her recent music video is the backdrop for the murdered corpse of a promising rock star.
Castle and Beckett go to a graveyard after the body of a young man sporting vampire fangs is discovered with a wooden stake through his heart.
Castle's book agent (Debi Mazar) approaches him with a career-changing opportunity, but accepting it would mean the end of his relationship with Beckett; the corpse of an unidentified woman is in a manhole.
The mysterious circumstances surrounding an Arctic explorer's death take Castle and Beckett to the halls of the CIA; Castle believes the killer may be fooling the investigators.
Castle and Beckett get an inside look at the cutthroat world of the New York fashion industry when they investigate the brutal murder of a young model during Fashion Week.
When two murders take place on the same night, Castle bets that he and Beckett can solve their case before Esposito and Ryan can solve the other one, but strange twists force the teams to work together.
Castle considers how to fix his relationship with Beckett and finish writing his book, but the pair must investigate a dead man tangled in tree limbs.
Castle and Beckett investigate when a plastic surgeon is brutally murdered; Alexis goes to her first prom; Castle uncovers surprising information when he looks into Beckett's past.
Castle finds himself vying with an FBI agent for Beckett's attention when she is called in to help the agency investigate a little girl's disappearance from her home.
Beckett and Castle uncover a dark secret about a woman found drowned in a tub of motor oil; Beckett and Castle clash.
Castle and Beckett hunt for the perpetrator when high-end home invasions end in murders; Castle consults with a former jewel thief who once threatened to kill him.
When a strange murder scene points to a ritualistic killing, Castle and Beckett search for the killer.
Police investigate when the frozen corpse of a missing woman is discovered at a construction site; Beckett must confront some difficult memories.
Castle and Beckett investigate the death of a city councilman; Beckett tries to throw Castle off his game during one of his book readings.
Castle and Beckett uncover a story of betrayal and obsession when they investigate the death of a teenage boy.
A woman's body is stashed in a laundry-room dryer in an upscale apartment building where she was a nanny; Castle tries to get inside Beckett's head while writing the first novel in his Nikki Heat series.
Mystery novelist Richard Castle works with New York police to find a killer who is modeling his crimes after scenes from Castle's novels.
A documentary crew follows Castle, Beckett and the team as they investigate the murder of a rock band's lead guitarist.
As Beckett and Castle investigate a murder at a sci-fi convention, they encounter avid fans in costume, egotistical celebrities and a lot of drama.
While retrieving a murder witness, Castle and Beckett are ambushed, forcing them to take the witness on the run.
Castle and Beckett investigate when a bearded man named Kriss Kringle falls from the sky in Central Park; Beckett and Castle work on a Christmas list together.
Several angry ex-husbands come under suspicion when a divorce attorney who only represented women is murdered; when Alexis gets sick, Castle's ex-wife moves into the loft to take care of her.
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The murder of a video store clerk with a secret history leads the team to Castle's father (James Brolin).
When a pop star is found dead in an alley, Beckett and Castle look into her hard-partying lifestyle; a shocking revelation rocks the investigation.
A dying man leaves a baby with a priest; Castle and Beckett end up taking care of the baby while they investigate.
Castle and Beckett suspect a serial arsonist of murder; Jenny goes into labor.
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When an employee at a fashion magazine is found dead, Castle and Beckett must dive into the world of high fashion to investigate; Beckett's history in the modeling world earns her access to a wedding surprise.
Beckett is asked to assist with a narcotics investigation; when a routine undercover operation goes awry, Beckett must face dangerous men from the New York underworld.
A guilt-ridden woman confesses to a murder, but contradictory evidence and a second confession complicate the case.
Castle and Beckett investigate the case of a high school mean girl who appears to have been killed by someone with telekinetic powers.
When Castle and Beckett investigate the mysterious murder of a Japanese ballet dancer, they end up being targeted by a ninja assassin.
When a surprise threatens to spoil Castle and Beckett's wedding day, they must set out on a wild mission filled with masked men and angry bikers.
Castle and Beckett delve into the world of extreme sports when a mysterious motorcyclist shoots an up-and-coming professional skateboarder.
When construction workers find the body of a missing mobster, Castle and Beckett must play into the delusions of the only witness in order to solve the murder.
An investigation into the murder of a Wall Street trader takes a shocking turn when Castle and Beckett discover Gates' estranged sister is involved.
Beckett's secret investigation into her mother's death goes awry when a man she has been watching is killed.
The investigation into the death of a pool shark reveals that the killer may have had paranormal powers; Castle and Beckett try to get back to normal.
Kate Beckett is faced with the toughest case of her career after finding Castle's car engulfed in flames.
As the team investigates the murder of a toy company CEO, Castle engages in a dangerous investigation of his own.
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Castle goes undercover at an elementary school to try to find a student who may have information about the shooting of an ice cream vendor.
Castle and Beckett investigate the murder of an Internet celebrity; when pictures of the crime scene show up on a photo sharing website, the investigators worry the killer may strike again.
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No episode description is available yet.
No episode description is available yet.
No episode description is available yet.
No episode description is available yet.
When an air marshal is murdered on Alexis and Castle's flight to London, the father-daughter duo must find the killer before he can carry out his plan.
A mysterious recurring dream inspires Castle and Beckett to look for answers about Castle's two-month disappearance; their search for the truth turns dangerous.
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When Castle and Beckett investigate the death of the creator of a long-running sketch show, they discover a secret that could explain his murder.
An investigation into a death in the woods brings Castle back to a traumatic event from his childhood, leading to an obsessive search for answers; Beckett faces a crossroads.
A call from a mysterious stranger ignites an explosive chain of events; the story is told from Castle's perspective as he searches for Beckett.
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Castle poses as a college professor so he can investigate a student's gruesome murder; Beckett and Castle find out that the university is hiding dark secrets.
Beckett receives a mysterious tip and is launched into a fight for her life with mercenaries on her trail; Castle tries to determine why his wife is on the run.
Castle is determined to figure out who murdered his idol, a reclusive author, but the truth seems to be stranger than fiction.
Detective Slaughter (Adam Baldwin) asks Castle for help solving a high-stakes robbery case; a corpse connected to the case makes Slaughter look guilty.
When a priceless piece of art is stolen during transport, Castle and Beckett work with a witness to track down the culprit.
The son of a Russian diplomat is murdered; during the investigation, Castle entertains a jovial Russian security guard, who turns out to be more involved in the case than expected.
Castle and Beckett find themselves trapped at sea with a killer when they investigate the murder of a cruise ship entertainer.
Castle is abducted and forced to solve deranged puzzles and mind games with strangers; Beckett and the 12th precinct race to save Castle.
The brutal murder of a Lothario prompts an investigation into New York's elite; Castle plans a surprise for Beckett in honor of their first wedding anniversary.
When a corpse is discovered in the theater of Martha's latest show, Castle and Beckett's investigation reveals surprising details about the world of competitive a cappella.
When Castle takes the stand as the key witness to a murder, new information suddenly arises, forcing Beckett to race to prevent a miscarriage of justice.
When a student who takes English as a second language is murdered, Castle goes undercover and learns unexpected information about the victim.
Beckett and the team return to the NYPD academy training ground to investigate the murder of a recruit officer; Castle struggles with a consequential decision for him and Beckett.
Castle goes to Los Angeles in hopes of finding answers about the time he cannot remember, but ends up in danger when he is recruited by the Greatest Detective Society.
Investigation into the death of an armored-car driver leads Beckett and Castle to one of Esposito's old cases.
No episode description is available yet.
No episode description is available yet.
No episode description is available yet.
When Hayley finds herself being implicated in a cyber-terror attack after doing an old friend a favor, Castle and Beckett rush to clear her name.
After a meek city safety inspector survives being poisoned, he tries to help Castle and Beckett with the investigation.
Castle and Beckett search for a stolen antique that may have been Aladdin's lamp in the hope it will lead them to a smuggler's murderer.
No episode description is available yet.
No episode description is available yet.
No episode description is available yet.
No episode description is available yet.
Castle and Beckett have their lead and are ready to face LokSat, but an unexpected twist puts everything in danger.
Castle thinks the Antichrist may be involved in the death of an axe-wielding, psychiatric inmate who drops dead in the P.I. office.
When a movie star turned stage actor is mysteriously killed, Castle and Beckett go backstage and discover he had more than his lines to worry about.
Police investigate when the frozen corpse of a missing woman is discovered at a construction site; Beckett must confront some difficult memories.
Mystery novelist Richard Castle works with New York police to find a killer who is modeling his crimes after scenes from Castle's novels.
Castle and Beckett uncover a story of betrayal and obsession when they investigate the death of a teenage boy.
Castle and Beckett investigate the death of a city councilman; Beckett tries to throw Castle off his game during one of his book readings.
A woman's body is stashed in a laundry-room dryer in an upscale apartment building where she was a nanny; Castle tries to get inside Beckett's head while writing the first novel in his Nikki Heat series.
When a strange murder scene points to a ritualistic killing, Castle and Beckett search for the killer.
Beckett and Castle uncover a dark secret about a woman found drowned in a tub of motor oil; Beckett and Castle clash.
Castle and Beckett hunt for the perpetrator when high-end home invasions end in murders; Castle consults with a former jewel thief who once threatened to kill him.
Castle finds himself vying with an FBI agent for Beckett's attention when she is called in to help the agency investigate a little girl's disappearance from her home.
No episode description is available yet.
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No episode description is available yet.
No episode description is available yet.
No episode description is available yet.
No episode description is available yet.
No episode description is available yet.
No episode description is available yet.
No episode description is available yet.
{"rating": "TVPG", "seasonNumber": 4, "gridViewPrimaryImageUrl": "/db_photos/showcards/v5/AllPhotosAPGT/188601/p188601_b_v5_aa_p.jpg", "episodeNumber": 9, "price": 0, "format": "SD", "dimension": "2D", "programID": "EP010855880069", "primaryImageUrl": "/db_photos/showcards/v5/AllPhotos/188601/p188601_b_v5_aa.jpg", "liveStreaming": "N", "mainCategory": "TV", "subcategoryList": ["Series", "Drama", "Mystery/Crime", "Comedy"], "listViewPrimaryImageUrl": "/db_photos/showcards/v5/AllPhotosAPGT/188601/p188601_b_v5_aa_l.jpg"}
No episode description is available yet.
No episode description is available yet.
No episode description is available yet.
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