After her husband is transferred to a distant city for work, Maki begins living with her nephew. One day, her nephew's teacher pays a visit to their home, and Maki becomes infatuated with the man's striking good looks, eventually being aggressively seduced by him. Witnessing the entire scene, her nephew—who has long harbored feelings for Maki—is left deeply shaken. Sensing this, the teacher manipulates the nephew's emotions, using him to further orchestrate intimate encounters with Maki, all for his own twisted enjoyment. The aftermath of Maki surrendering her body to these two men spirals into an unimaginable conclusion, drastically altering the relationships between Maki, her nephew, and the teacher.