Price plays the titular mad scientist who, with the questionable assistance of his resurrected flunky Mullaney, builds a gang of female robots who are then dispatched to seduce and rob wealthy men. (Goldfoot's name reflects his and his robots' choice in footwear.) Avalon and Hickman play the bumbling heroes who attempt to thwart Goldfoot's scheme. The film's climax is an extended chase through the streets of San Francisco.