Wishing to become young again, a crazy old lady hires a mad doctor to transplant her aged brain into the body of a sexy young model. But the doc's experiments with atomic power, animal brains and the bodies of the dead unleash such monstrosities as a female zombie, a furry-faced dog-man and a woman with The Atomic Brain of a cat who eats mice and sits atop the roof of the old lady's house!
Then, the delicate cataleptic Mr. Montel is buried alive by his two-timing "virgin wife" Sofia and dastardly Dr. Anderson, but moments after his funeral, Montel claws himself out of the grave and swears vengeance on his wife by... becoming a sex maniac.
Plus, John Carradine invents a newfangled diving bell and sends Robert Clarke and Plyllis Coates down to The Incredible Petrified World where they're menaced by a volcano ready to pop its top and a sex-crazed hermit about to do the same!
It's a truly twisted Triple Bill straight from the bowels of B-Movie Hell!