When did Castle Season 6 Episode 20 air?
Castle Season 6 Episode 20 aired on April 21, 2014.


A whole new chapter in crime solving.
After a serial killer imitates the plots of his novels, successful mystery novelist Richard "Rick" Castle receives permission from the Mayor of New York City to tag along with an NYPD homicide investigation team for research purposes.

When construction workers find the body of an infamous New York mobster who disappeared in the seventies, Beckett and Castle try to solve this three decade-old mob hit. Unfortunately, their only witness is a man who thinks it’s still the 1970’s, so to uncover what he knows, they must play into his delusion, and party like it’s the last days of disco.
Direct answers for episode-level questions and details.
Castle Season 6 Episode 20 aired on April 21, 2014.
This episode runs for approximately 44 minutes.
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