Reiko Sawamura plays Honami, a married woman starved of affection due to her husband's constant work absences, who begins an affair with another man. Her secret tryst is discovered by Naoki, a reclusive neighbor preparing for college entrance exams, who uses the knowledge as leverage to dominate her. While her husband is away on a business trip, Naoki sneaks into Honami's apartment and forces himself upon her, asserting complete control. Though internally resistant, Honami is overpowered by his aggressive dominance. He restrains her, manipulates her body, and repeatedly pushes her to her limits with lewd acts. Unable to endure the torment, Honami breaks down in sobs, her anguished expressions vividly captured throughout the encounter.