Living an ordinary life, husband Masaya discovers one night a drunken married woman, Aya, in the apartment next door. Finding her collapsed by the entrance, he can't just leave her there. Taking the key from her bag, he brings her to his place and lays her on the bed. Aya's disheveled clothes reveal her smooth, pale skin, stirring Masaya's emotions. Overcome with desire, he loses control, giving in to his uncontrollable lust. In the quiet of the night, their relationship takes a sudden, intimate turn.