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World famous mystery writer Richard Castle finds unexpected inspiration when Detective Kate Beckett questions him about a series of murders that based on his books.
On Castle Season 7 Episode 13, Rick is hired to find out if his client's husband is having an affair but he's shocked when he ends up witnessing her murder.
On Castle Season 7 Episode 12, the death of a young telenovela actress has Beckett and her team investigating the case and Rick searching for her missing purse.
On Castle Season 7 Episode 11, after getting kicked out of the 12th precinct, Castle figures out another way to be close to Beckett when he gets his private investigator's license.
On Castle Season 7 Episode 10, an ER physician is gunned down in the street. Esposito and Lanie, meanwhile, hit a crossroads in their relationship.
On Castle Season 7 Episode 9, the star of Rick's favorite old action movie is found dead. As a result, Castle and Beckett delve into the actor's past.
On Castle Season 7 Episode 8, Detective Esposito ends up in the middle of a deadly situation when a person of interest in a murder investigation takes a subway car hostage.
On Castle Season 7 Episode 7, Castle and Beckett are married! But they also learn that a murder victim may have been poisoned at an Old West-style resort.
Castle Season 7 Episode 6 Rick ends up in an alternate universe where he's never met Beckett or anyone at the 12th. Can he convince them to let him help with the case so he can get back and marry Kate?
When internet celebrities turn up gruesomely murdered on Castle Season 7 Episode 5, Castle and Beckett visit the dark side of the world wide web.
Rick goes undercover in an elementary school when the team has to identify a second-grader who may information about the murder of an ice cream vendor on Castle.