Castle
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.

Season 8 · Episode 20 ·
Much Ado About Murder
After a movie star turned theater actor is mysteriously killed, Castle and Beckett go backstage and learn the star had more to worry about than just his lines.
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Episode 20 of season 8 of Castle: “Much Ado About Murder”. Aired 2016-05-02. Watch it online free on ZapFlix.