Natsume, a married woman, is captivated by the gaze of the man living next door in her apartment. She can't get him out of her mind and boldly drops her keys to coyly seduce him. Their mutual attraction entangles them, and they eventually give in to their impulses. The man and woman indulge in fierce, voracious sex. When her husband goes on a business trip, they take their time, slowly savoring the intimate act.
