Tommy, a patient, is preparing for a standard operation. Despite his apprehension, the nurse assures him that everything will go smoothly. Just as the procedure is about to begin, both the nurse and the surgeon start displaying odd behavior. Upon awakening after the surgery, Tommy discovers he is alone in the room, sensing something amiss. After hastily removing his bandages, he realizes his manhood is missing. Panicked, he finds a note instructing him to go downstairs. In the basement, Tommy is taken aback to see the surgeon has morphed into a monstrous figure, utilizing his detached member to engage in sexual activities with the nurse. Tommy begs to have his member returned, but the monster demands his soul and more, aiming to create a hybrid of human and demon. Desperate, Tommy agrees to the terms. His penis is reattached, yet now he must participate in a threesome with the monster and nurse until their perverted cravings are satisfied.