Pendant la Seconde Guerre mondiale, un avion s'écrase sur une petite île. Les survivants sont accueillis par le Dr. Sangre, un scientifique nazi qui pratique la sorcellerie vaudou pour réveiller les morts.
Bela Lugosi stars as Charles Kessler, a man who has never really got to grips with the fact that his wife has left him. That is the least of his problems though, because there have been a lot of murders recently and they have all taken place on the Kessler estate.
A couple of teenagers are reported missing in a small Texas town, and it is thought they eloped. Sheriff Jeff turns to his friend, Clarence Winstead, a garage mechanic and leader of a hot-rod gang for help.
Les petits-enfants de Frankenstein, Maria et Rudolf, vivent au Far West, ils utilisent les orages pour poursuivre les expériences de leur grand-père. Après de nombreux échecs, les villageois terrorisés fuient le village.
Dr. Bernard Adrian is a kindly scientist who seeks to cure a young woman's polio. All he needs is spinal fluid from a human to complete the formula for his experimental serum. Meanwhile, a vicious circus ape has broken out of its cage, and is terrorizing the townspeople.