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Castle and Beckett look into the murder of a young mathematician this week. He was murdered with a 200-year-old bullet, which leads to thoughts of a time-traveling culprit.
Might Castle's unusual theory pan out this week? Beckett must consider the possibility. Elsewhere, her former partner returns. Might things turn romantic?
Our favorite duo investigates the murderer of a well-known psychic this week, while also debating whether extrasensory abilities are valid or not. A written letter also plays a key role.
Castle as a murder suspect?!? That's how season three kicks off, as Beckett starts the episode having not seen her partner in awhile, only to later arrest the author.
Monet Mazur returns to Castle for this week's season finale. During the hour, Castle and Beckett investigate what appears to be the assassination of an intelligence operative
Beckett asks for Demming's help on a case this week, which means Castle can watch their romance first hand. As you might expect, the investigation therefore becomes a competition for Kate's attention.
A dynamic restaurateur finds herself mixed up in the murder investigation this week. The episode is titled "Food to Die For."
Castle and Beckett investigate the murder of a thief this week. Aptly, the episode is titled "Den of Thieves."
This is a fun episode of Castle. It mocks the late-night wars and features a number of guest stars.
On this episode, Beckett and Castle look into the death of a museum curator. It's titled "Wrapped Up in Death."