In her ninth year of marriage, housewife Eri Nai (35) has her happy family life shattered by her husband's shocking confession. Under his pressure to fulfill his fetish of offering his wife to other men, she reluctantly agrees after much inner conflict to meet a complete stranger. Thus begins a series of days in which the housewife repeatedly engages in lewd acts with other men in front of the camera. Initially acting solely for her husband's sake, she gradually begins to actively seek out these taboo encounters out of her own desire. To fulfill her husband's wishes and satisfy her own cravings, the housewife exposes herself to various situations on camera. This film portrays the transformation, inner turmoil, and ultimate choices of a married woman.