When did Castle Season 2 Episode 21 air?
Castle Season 2 Episode 21 aired on April 19, 2010.


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.

Investigating the murder of a thief, Castle and Beckett are surprised to learn that Esposito has a personal connection to the suspected killer. Another surprise is in line for Castle when Beckett hits it off with the handsome Robbery detective assigned to the case, Tom Demming. Now this romantic triangle must work together to solve the case
Direct answers for episode-level questions and details.
Castle Season 2 Episode 21 aired on April 19, 2010.
This episode runs for approximately 44 minutes.
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