One night, her husband invites a colleague over to their house. As they drink and the conversation flows, he eventually passes out and falls asleep on the living room sofa. As he snores, Reiko confesses her troubles about their sexless marriage. The colleague then confesses, "I've been interested in you for a while," and suddenly kisses her. He whispers, "I can satisfy you," and Reiko desperately tries to resist the sense of immorality that her husband is so close by. However, she can't resist the desires she has been suppressing...