A quiet suburb in Southern California is terrorized by a mysterious murderous monster living in a cave. As the bodies pile up -- with incriminating banana peels always near by the crime scene -- a group of teens stumble on the guilty party: a 20-million-year-old Schlockthropus, an ape-like creature with a sense of the absurd.
John Landis
as Schlock
Saul Kahan
as Detective Sgt. Wino
Joseph Piantadosi
as Ivan
Eliza Roberts
as Mindy Binerman
Tom Alvich
as Torn Cop
Walter Levine
as Police Thief
Harriet Medin
as Mrs. Blinerman
Eric Sinclair
as Joe Putzman (as Eric Allison)
Charles Villiers
as Cal
Ralph Baker
as Dying Man
John Chambers
as National Guard Captain
Gene Fox
as Billy
