A busty wife books a home massage expecting a woman, but an older man named Shinji arrives instead. Though startled, she is won over by his polite manner and convincing claims of exceptional skill, so she lets the session continue. She has no idea that Shinji is a depraved predator who secretly uses powerful aphrodisiacs while searching for women to enslave. Once he spreads the slick drug over her huge breasts, she becomes addicted to the pleasure and eventually begs him to return and creampie her day after day.