Castle 2009 | TV Show
A murder-mystery writer and a detective team up to catch a serial killer who is reenacting murders from his books. Once the case is solved, the unlikely pair continue to work together to probe New York City's most unusual homicides.
Premiered: March 9, 2009
Season 4, Episode 6 Demons
First Aired: October 24, 2011
Castle and Beckett investigate the homicide of a popular ghost hunter who was killed while probing paranormal activity at a famous mansion.
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