Performed by adults. A publishing employee lives in a large house but rarely spends time with his frequently traveling wife, who exhausts him by demanding sex whenever she returns. Her adult sister Erika often visits him. One day, their small talk turns to sex, and a mischievous Erika reaches for his crotch. As he loses control and tries to take her, she whispers that if he can abstain for 30 days, he may do anything he wants with her...