Judi, a Las Vegas singer, travels to California to search for her missing sister, who has been killed by Groton (Lon Chaney, Jr.), a henchman for the last member of the Frankenstein family (J. Carrol Naish). Enter Count Dracula, who promises to help the Doctor revive the original Frankenstein monster in exchange for blood. Unfortunately, the monster just goes bananas when he is resurrected, and it's a battle to the death for these horror-movie warhorses.