The Great McGonigle and his troupe of third-rate vaudevillians manage to stay one step ahead of the bill collectors and the sheriff.

Broadway actress leaves New York to become a star in Hollywood, and succeeds despite sleazy directors and her own ego.

A scientist is turned into an ape man.

Kit Cardigan seeks the killer of his father…among other plot threads leading up to the famous historical incident.

When his friend Professor Kingsely (Ridges) is at deaths door, brain surgeon Dr. Sovac (Karloff) saves his life by means of an illegal operation that transplants part of injured gangster…

Ships disappear on route across the Arctic Sea, and a special submarine is sent to investigate.