Her husband is an ordinary salaryman, and ever since marriage, he's been constantly consumed by work. Amid this strained routine, her father-in-law's health begins to deteriorate, and as a childless housewife, she takes on the responsibility of caring for him. With her husband too busy to emotionally support her, stress and sexual frustration build up inside her. While tending to her father-in-law's intimate needs, her primal instincts awaken, leading her into a physical relationship with him. However, his aging body fails to satisfy her desires. At his request, she turns to his attending physicians, submitting herself as a masochistic partner, craving their dominance. Repeatedly brought to climax, she cries out in ecstasy. This complex human drama captures the emotional and physical turmoil tearing at the wife's soul.