In 19th century Paris, a maniac abducts young women and injects them with ape blood in an attempt to prove ape-human kinship but constantly meets failure as the abducted women die.
Sidney Fox
Mlle. Camille L'Espanaye
Bela Lugosi
Dr. Mirakle
Leon Ames
Pierre Dupin
Bert Roach
Paul
Betty Ross Clarke
Mme. L'Espanaye
Brandon Hurst
Prefect of Police
D'Arcy Corrigan
Morgue Keeper
Noble Johnson
Janos The Black One
Arlene Francis
Woman of the Streets
Ted Billings
Sideshow Spectator (uncredited)
Herman Bing
Franz Odenheimer (uncredited)
Joe Bonomo
Gorilla (uncredited)
Agostino Borgato
Alberto Montani (uncredited)
Iron Eyes Cody
Indian at Sideshow (uncredited)
Christian J. Frank
Gendarme Using Snuff (uncredited)
