Season 4, Episode 22 Undead Again
First Aired: April 30, 2012
A body with human bite marks is discovered, and the sole witness claims a zombie killed the man. Castle and Beckett then explore New York City's zombie subculture to unearth the murderer.
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- Premiered: March 9, 2009
- Rating: TV-PG
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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)