THE 1977 UNSOLVED DEATH OF A PHILADELPHIA DOORMAN IS RE-OPENED WHEN RUSH AND VALENS TRY TO LINK HIS MURDER TO A SERIAL KILLER ABOUT TO BE RELEASED FROM PRISON, ON "COLD CASE," SUNDAY, MAY 1

Barry Bostwick ("The Rocky Horror Picture Show") Guest Stars

"Creatures of the Night" -- The unsolved 1977 case involving the death of a Philadelphia doorman, Mike, is given a second look when Rush and Valens try to link his murder to a serial killer about to be released from prison on a legal technicality, on COLD CASE, Sunday, May 1 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Alex Zakrzewski directed from a script by Tyler Bensinger.

Rush and Valens first tackle the unusual relationship of Mike and the serial killer, Roy (guest star Barry Bostwick), for any past connection. Mike worked at a fancy apartment building and was oddly close with one of the married residents, and Roy was a severely troubled teen with an abusive father. Eventually, Rush and Valens uncover that Mike's girlfriend at the time also worked with Roy at a local diner and that a midnight screening of "The Rocky Horror Picture Show" was the event that brought them all together.

Lilly Rush: Kathryn Morris
John Stillman: John Finn
Nick Vera: Jeremy Ratchford
Will Jeffries: Thom Barry
Scotty Valens: Danny Pino
Roy Anthony (2005): Barry Bostwick
Christina: Nicki Aycox
Mike Cahill (1977): Zack Graham
Kelly Witkowski (1977): Claire Coffee
Kelly Witkowski (2005): Laura Leigh Hughes
Roy Anthony (1977): Alex Ball
Louise (1977): Christina Cabot
Louise (2005): Jill Andre
Helen Hargrove (1977): Hillary Danner
Helen Hargrove (2005): Kat Sawyer
Edward (Norman) Anthony: James Howell
Mark Phillips: Daniel Travis
Dennis Hargrove: David Chisum
Larry (Alex) Papas (2005): Jeff Doucette
Larry (Alex) Papas (1977): David Bowe
Dan O'Brien (2005): W. Morgan Sheppard

RATING: To Be Announced