After five unstimulating years as a housewife, Ai confesses that she wants to try nude modeling just once. Her hesitant husband shares the dilemma with his manager, Oshima, who immediately claims to know a good photographer and schedules the shoot without consulting them. Still unable to make up their minds, the couple arrives at the studio on the appointed day—where Ai’s desire for excitement leads her into humiliation and an affair with her husband’s boss.