• Stewart Moss & Marianne McAndrew play a newlywed couple(married in real life as well) who go exploring Carlsbad Cavern, where Moss(Dr. John Beck)is bitten by a fruit bat after he falls into a hidden crevice. After he frees himself and goes home, he finds to his horror that he now transforms into a killer Man-Bat, who must drink blood in order to survive. He is helped by his sympathetic wife, but pursued by the local sheriff, who has designs on Mrs. Beck...

    Film has a distinct aura of melancholy about it, and isn't badly acted at all, but is awfully slow-paced, with inadequate make up F/X by future Oscar Winner Stan Winston. Has some distinct atmosphere at times, but ultimately fails, despite a haunting final scene.