侦探小说家Richard Castle（内森·菲利安 Nathan Fillion 饰）因为一起连环杀人案结识了纽约警局的Kate Beckett（斯坦娜·卡蒂克 Stana Katic饰），并对她产生了浓厚的兴趣。虽然Beckett强烈反对，Castle最终还是凭借自己发达的人脉，在纽约警局“赖”了下来，跟在Beckett身后办案以寻找写作灵感。性格和背景迥异的两人在不断的斗嘴与摩擦中竟然渐渐培养出了默契，成了名符其实的最佳搭档。但Castle不顾Beckett的反对，私下调查Beckett母亲多年前的命案，一度导致两人的关系一度陷入僵局。当Richard那种 "随心所欲"、"自由散漫" 的作风与Beckett那种程序化的保守作风相抵触时，争论随之而来，火花也随之而来。是危险，还是浪漫？
播出日期: 2015-09-21
运行时间: 44 min
概述: After passing the Captain's exam last season, Beckett was surprised with an offer to run for State Senate. In the action packed season premiere, Castle and Beckett are adjusting to Beckett's career change, when a call from a mysterious stranger sets off an explosive chain of events. There are two sides to every story, and this unique two-parter will explore the same story from each of their perspectives, first from Castle's side as he searches for Beckett.
播出日期: 2015-09-28
运行时间: 44 min
概述: Beckett's side of her abrupt disappearance is revealed. After receiving a mysterious tip from her past, Beckett is launched into a fight for her life, with a team of mercenaries hot on her trail. While Castle investigates why his wife is on the run, Beckett must figure out who wants her dead, before they can finish the job.
播出日期: 2015-10-05
运行时间: 44 min
概述: When the body of a local college fraternity student is found gruesomely murdered, Castle has to go undercover as a professor in order to gain access to the victim's world. However, he and Beckett soon discover that behind the fun and games of college are some darker secrets the university wants to keep hidden.
播出日期: 2015-10-12
运行时间: 44 min
概述: When Castle's idol, a famously reclusive author, turns up dead, Castle is determined to solve his hero's murder. But as he and Beckett dig deeper, they discover that truth is stranger than fiction.
播出日期: 2015-10-19
运行时间: 44 min
概述: When a priceless work of art is stolen and its transporter murdered, Castle and Beckett must work with the key witness to track down the painting and sniff out the killer.
播出日期: 2015-11-09
运行时间: 44 min
概述: Detective Slaughter returns to enlist Castle’s help in solving a high-stakes robbery case. But when a body is found linked to the crime, Slaughter becomes the number one suspect in the heist turned murder, while Castle has to determine whether he’s guilty or help to prove he’s innocent.
播出日期: 2015-11-16
运行时间: 44 min
概述: In order to hunt down the brutal murderer of a grifting seducer, Castle & Beckett must investigate New York’s elite. Meanwhile, Castle plans to surprise Beckett on their one-year wedding anniversary.
播出日期: 2015-11-23
运行时间: 43 min
概述: Castle and Beckett investigate the murder of a cruise ship entertainer, only to find themselves trapped at sea with the killer.
播出日期: 2016-02-08
运行时间: 44 min
概述: When a body is found in the theater of Martha’s latest show, Castle and Beckett’s investigation leads them into the unexpectedly dangerous world of competitive a capella.
播出日期: 2016-02-14
运行时间: 44 min
概述: Castle finally gets his day in court when he takes the stand as the key witness to a murder from five months ago. But when new information suddenly arises, he and Beckett must race against the clock to prevent a miscarriage of justice.
播出日期: 2016-02-15
运行时间: 44 min
概述: When the son of a Russian diplomat turns up murdered, Beckett and Castle find themselves in a dangerous game of international crime and punishment, with Castle having to entertain a jovial Russian security officer who winds up more involved than anyone planned.
播出日期: 2016-02-22
运行时间: 44 min
概述: Castle is captured and forced to work with strangers to solve deranged puzzles and mind games, while Beckett and the 12th Precinct must race against time to rescue Castle and catch a killer.
播出日期: 2016-02-29
运行时间: 44 min
概述: Beckett and the 12th Precinct look into the murder of an English as a Second Language student. But when the victim's class won't talk to the police, Castle goes undercover as a French Canadian immigrant and learns that the victim was more than he seemed.
播出日期: 2016-03-07
运行时间: 44 min
概述: Castle returns to the City of Angels in search of answers about his missing time. But things take a deadly turn when he’s recruited by the legendary Greatest Detective Society to help solve a murder.
播出日期: 2016-03-21
运行时间: 44 min
概述: When a recruit officer at the NYPD Academy is killed, Beckett and the team go back to their old training ground to investigate. Meanwhile, Castle must reckon with a decision with profound consequences for him and Beckett.
播出日期: 2016-04-04
运行时间: 44 min
概述: A clue at the scene of the death of an armored-car driver leads Beckett and Castle back to an old case solved by Esposito. But complications arise when they learn that Esposito might not have been telling them everything about his past with the culprit.
播出日期: 2016-04-11
运行时间: 43 min
概述: The murder of a man connected to smuggling Turkish relics sends Castle, Beckett and the 12th Precinct on a search for a stolen antique believed to be Aladdin’s lamp, in hopes that it can lead them to the killer.
播出日期: 2016-04-18
运行时间: 44 min
概述: After Hayley does a favor for an old friend, she finds herself implicated in a killing and cyber-terror attack. Now, Beckett and Castle must rush to solve the case and clear Hayley’s name.
播出日期: 2016-04-25
运行时间: 44 min
概述: When a mild mannered safety inspector for the city miraculously survives a poisoning, it might be luck; but when he survives another, it’s a mystery Castle and Beckett will have to solve.
播出日期: 2016-05-02
运行时间: 44 min
概述: After a movie star turned theater actor is mysteriously killed, Castle and Beckett go backstage and learn the star had more to worry about than just his lines.
播出日期: 2016-05-09
运行时间: 44 min
概述: When an axe-wielding, escaped psychiatric inmate drops dead in Castle’s P.I. office, Castle and Beckett’s investigation leads Castle to suspect the victim’s death could be the work of the Antichrist.
播出日期: 2016-05-16
运行时间: 44 min
概述: With their best lead in hand, Castle and Beckett are ready to take on LokSat. But an unforeseen twist puts their case – and their lives – in jeopardy.
