In her third year of marriage, Haruka lives a modest but happy life with her husband. One day, her husband gets into trouble with a gangster (Oshima). He meets a woman in the entertainment district, talks to her, gets her drunk, and the next morning, he wakes up naked in a hotel room. The woman turns out to be Oshima's wife, and she has successfully caught evidence of his infidelity. It must be a honey trap, but since he has no memory of his innocence, he cannot resist Oshima. Oshima is his underling...