Castle airs on Mondays at 10/9c on ABC.
Original run: 2009 - present
TV Watch U.S. prediction: Likely Cancellation
Synopsis (also check out the trailer below):
Richard (Nathan Fillion) is a famous novelist who gets into contact with detectives from the NYPD after being questioned by them because of copy-cat murders based on his novels. is intrigued by this side of crime and is allowed to shadow Detective Kate Beckett (Stana Katic). uses Beckett as model for the main character of his new book.