After escaping from an insane asylum, a medical student assumes the identity of a mysterious dead man, who appears to be his doppelganger, and gets lured to a sinister island ruled by a mad scientist and his malformed men.
Horrors of Malformed Men is a 1969 Japanese horror film directed by Teruo Ishii, who also co-wrote the film. It is based on the novels Strange Tale of Panorama Island and The Demon of the Lonely Isle by Edogawa Rampo.