One day, a young wife, Mei, who is dissatisfied with her husband's private life (playing around with women), finds a subordinate from work whom her husband invites over to their home and finds him attractive as a man. Mei exchanges contact information with her husband's subordinate. While her husband is away on a business trip for three days, she has secret rendezvous with a man younger than her husband, passionately making love to him and having sex over and over again. It's a 72-hour period of pleasure, with sex continuing in the entranceway, bathroom, living room, and just about anywhere. "He's better than my husband..." The two get excited about their secret relationship, which would end if they were found out.