A movie star who transitioned to theater work is killed, so Castle and Becket go behind the scenes to investigate what was going on in the actor's life.

Cast: Nathan Fillion, Stana Katic, Susan Sullivan, Jon Huertas, Seamus Dever, Tamala Jones, Molly C. Quinn, Toks Olagundoye, Ken Colquitt, Jonny Cruz, Juliana Dever, Emily Goss, Andrew Elvis Miller, Roman Mitichyan, Richard Nunez