At a carnival called the Garden of Evil, a man is murdered, apparently by a gorilla...or someone in a gorilla suit.
Cameron Mitchell
as Joey Matthews
Anne Bancroft
as Laverne Miller
Lee J. Cobb
as Detective Sgt. Garrison
Raymond Burr
as Cy Miller
Charlotte Austin
as Audrey Baxter
Peter Whitney
as Kovacs
Lee Marvin
as Shaughnessy--Policeman
Warren Stevens
as Joe, Detective
John Kellogg
as Morse
George Barrows
as Goliath the Gorilla (uncredited)