VIDEO: Sneak Peek - 'Death Gone Crazy' Episode of ABC's CASTLE

On the next episode of the ABC drama series CASTLE entitled "Death Gone Crazy" - When Beau Randolf, the founder of hit adult video franchise "College Girls Gone Crazy," is murdered, Castle and Beckett are confronted with a lengthy list of husbands, fathers and ex-college girls who all have motive. So to find the killer, they must delve deep into the victim's life, where they find surprises at every turnn. The episode airs MONDAY, JANUARY 21 (10:01-11:00 p.m., ET) on ABC. Also in the episode, Alexis starts a video blog, but Castle is not happy that personal and intimate details about her life are being made public. Get a sneak peek below!

"Castle" stars Nathan Fillion as Richard Castle, Stana Katic as NYPD Detective Kate Beckett, Susan Sullivan as Martha Rodgers, Molly Quinn as Alexis Castle, Penny Johnson Jerald as NYPD Captain Victoria Gates, TAMALA JONES as Medical Examiner Lanie Parish, Jon Huertas as NYPD Detective Javier Esposito, and Seamus Dever as NYPD Detective Kevin Ryan.

Guest Cast: Kelly Hu as Scarlet Jones, Jordan Belfi as Beau Randolph, Chad Donella as Troy Strickland, Spencer Garrett as Evan Pierce.

"Death Gone Crazy" was written by Jason Wilborn and directed by Bill Roe.