Overview
Dr. Bernard Adrian is a kindly scientist who seeks to cure a young woman's polio. He needs human spinal fluid to complete the formula for his experimental serum. Meanwhile, a vicious circus ape has broken out of its cage, and is terrorizing the townspeople. Can there be a connection?
Cast
- Boris Karloff as Dr. Bernard Adrian
- Maris Wrixon as Frances Clifford
- Gene O'Donnell as Danny Foster
- Dorothy Vaughan as Mother Clifford
- Henry Hall as Sheriff Jeff Halliday
- Selmer Jackson as Dr. McNulty
- Gertrude Hoffmann as Jane the Housekeeper
- Jessie Arnold as Mrs. Brill
- Billy Bletcher as Short Mustached Posse Man
- Harry C. Bradley as Quinn