When young Dr. Jason Brown learns that Dr. Karvel can implant the memories and personalities of dead people into living people, he tries to stop the mad experiments, but Karvel overpowers him and turns him into Jack the Ripper. Jack then kills Karvel and Brown is declared insane and locked up for life.
Professor Sherman; Satan; Fran Sherman; Len Clark; Benito Mussolini; Jack the Ripper; Attila the Hun; Adolf Hitler
Professor Sherman's wax museum is in danger of closing when he makes a deal with Satan, who promises to bring Sherman's wax figures to life. However, instead of animating the great men of history, as Sherman intended, Satan brings to life the greatest villains of history.