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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  • Premiered: March 9, 2009
  • Rating: TV-PG
  • User Rating:4.75 out of 5 (5,834 ratings)
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  • Premise: Successful mystery novelist Richard Castle starts working with the New York Police Department (NYPD) homicide investigation team after a serial killer decides to use plots from his novels for no good. (more)

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