Castle 2009 | TV Show Watchlist

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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.

Premiered: March 9, 2009

Rating: TV-PG

User Rating:4.75 out of 5 (5,834 ratings)

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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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Guest Cast