At Professor Wayne Garth's laboratory, the scientist's beautiful assistant Jelena Jensen is confronted by an unknown assailant. The buxom brunette (in secretarial skirt, blouse, vest, stockings and open-toed high heels) is cleavegagged and securely bound to her chair while the unknown intruder searches the laboratory. When the burglar returns to check on his trussed-up captive, he exposes her enormous breasts. It seems Jelena's tormentor may have something else planned, and he doesn't intend to free her anytime soon!