When several women are found mutilated and murdered, the Paris police are baffled as to who the killer may be. All evidence points to Dupin, but soon it becomes apparent that it is someone (or something) stronger and deadlier than a human.

• Warner Bros. Pictures
• Karl Malden
• Claude Dauphin
• Patricia Medina
• Steve Forrest
• Allyn Ann McLerie
• Anthony Caruso
• Veola Vonn
• Dolores Dorn