Season 3, Episode 1 A Deadly Affair
First Aired: September 20, 2010
In the third-season premiere, Beckett finds Castle at a murder scene holding a gun and is forced to arrest him despite his claims of innocence.
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- Premiered: March 9, 2009
- Rating: TV-PG
- Premise: A murder-mystery writer and a homicide detective team up to solve unusual crimes in New York City, and their professional relationship soon crosses the line into romance. (more)