The married woman Rina moves in next door to a ronin student, gradually falling for him while struggling with dissatisfaction in her marriage. Unable to resist her seduction, the ronin finds himself surrendering to Rina. Each time her husband goes on business trips, Rina's desires grow stronger, and when summoned late at night, the husband discovers her in the midst of an affair with her lover. Their passion intensifies, entangling the desires of man and woman in a whirlwind of lust and infidelity.