A group of people find themselves trapped in a creepy mansion, complete with secret passageways, a mad doctor and a murderous gorilla.

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Main Cast: Larry Olsen, Eilene Janssen, Peter Miles, Ardda Lynwood, Dale Belding, Virginia Grey, Don Castle, George Zucco, Paul Hurst, Whitford Kane

Director: Bernard Carr

Writers: Maurice Geraghty, Dorothy Davenport

Editor: Art Seid

Cinematographer: John W. Boyle

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