After her husband Toshihiko fails in business and accumulates massive debt, wife Rei is forced to take refuge in her in-laws' home. Her father-in-law Ryuichi runs a large company and remains busy with work. One day, Ryuichi asks her, "Rei, could you bring me some tea to my room?" From that day on, Rei's life changes completely. Her body, long suffering from a sexless marriage, is forcibly taken by her father-in-law. The shock and terror shake her to the core. The story unfolds the boundaries of familial duty and human relationships, along with the harsh reality she must face.