A group of people find themselves trapped in a creepy mansion, complete with secret passageways, a mad doctor and a murderous gorilla.
Larry Olsen
as William 'Curley' Benson
Eilene Janssen
as Betty
Peter Miles
as Dudley
Ardda Lynwood
as Ardda
Dale Belding
as Speck Jones
Virginia Grey
as Ann Loring
Don Castle
as George
George Zucco
as Doc Robbin
Paul Hurst
as Jailer
Whitford Kane
as 'Fix-it' Dan Cameron
Wilton Graff
as Prosecutor
Claire Du Brey
as Housekeeper
