Castle, ABC’s hit series, deftly blends mystery and comedy. The amusement starts with the premise itself. Richard Castle (Nathan Fillion) is a best-selling mystery writer who joins NYPD detective Kate Beckett (Stana Katic) as a consultant on a series of criminal investigations. Beckett served as the inspiration and model for Castle’s most iconic fictional character. He is allowed to tag along with her simply because he loves a good mystery story, real or fictional, and he is personal friends with the mayor. The appeal of the show rests in the relationship between the lead characters. The stoic Beckett is contrasted with the witty, goofily enthusiastic Castle, who sees everything in life as a pulpy genre story waiting to happen. The series revels in this same ideal of storytelling. Plots shift week to week from ordinary law & order murder investigations to CIA counter-terrorism conspiracies to undercover mob infiltrations to Halloween-themed mock vampire attacks. All of them are loaded with lovable pop culture references and puzzles that manage to both twist and charm. It’s worth a watch for anyone who loves a good whodunit and wouldn’t mind seeing a lead character who shares their passion.