Drawn by the sound of moaning he hears in a residential area, the man peeks into a room and sees a woman masturbating. As he peeks, he gradually becomes aroused and rings the doorbell. The woman, unaware of what's going on, comes out and realizes that she's been seen masturbating, and she obeys him, even allowing him to have sex with her, becoming aroused despite her embarrassment. Her moaning is now louder than before and can be heard outside...