A bridal beauty salon where unmarried couples come. The two beauticians, a man and a woman, greet them and give them tea laced with an aphrodisiac, then begin to massage each other. But when they become aroused and sensitive, the roles are suddenly switched, and the woman is shy and weak and resists, but she succumbs to the pleasure and lets herself be dominated by the man. Her boyfriend, who is forced to watch the whole thing through a one-way mirror, is also at the mercy of the female beautician's skillful techniques, and the couple are both cuckolded at the same time...