Original air date: 02/03/2014 Runtime: 42:58 min. When the assistant to Modern Fashion Magazine’s dictatorial editor Matilda King (guest star Frances Fisher) is found murdered, Castle and Beckett are thrust into the glitzy, ruthless world of high fashion in their search for the killer. Meanwhile Beckett's history in the modeling world gets her access to a very special wedding surprise.
Original air date: 02/17/2014 Runtime: 42:51 min. The murder of a high school mean girl draws Castle back to one of his many alma maters, where he is giddy to learn that the evidence points to a surprising perpetrator--a teenage telekinetic, throwing he and Beckett into a real-life "Carrie."
Original air date: 04/21/2014 Runtime: 43:05 min. When construction workers find the body of an infamous New York mobster who disappeared in the seventies, Beckett and Castle try to solve this three decade-old Mafia hit. Unfortunately, their only witness is a man who thinks it's still the 1970s, so to uncover what he knows, they must play into his delusion, and party like it's the last days of disco.
Original air date: 05/05/2014 Runtime: 43:04 min. A secret investigation conducted by Beckett related to her mother's murder goes awry when a man she has been surveilling is killed. When evidence links Beckett to the victim, she and Castle become the targets of a manhunt that puts both of them in grave danger.
Original air date: 05/12/2014 Runtime: 42:58 min. On the season finale, Castle and Beckett's long-awaited wedding is almost here, but when a shocking surprise threatens to ruin the big day, they are sent on a wild mission filled with masked men, angry bikers and a charming ne'er-do-well from Beckett's past.