When Sid Ross, the powerful creator of a long-running sketch comedy show is killed, Castle and Beckett are called to investigate. But as they delve into the victim's life and the colorful world of “Saturday Night Tonight,” they uncover a shocking sec... (more)ret that may explain Sid's murder.

Carly Rae Jepsen, Dustin Ingram, Eden Malyn, Gregory Harrison, Jaleel White, James Eckhouse, Joey Honsa, Joy Osmanski, Mark Rolston