The truck driver father died in a collision accident due to falling asleep at the wheel. Reiko, burdened with a large amount of compensation money, lives in poverty with her son. Kato repeatedly visits her every month, demanding her body, claiming that his wife was killed. However, Reiko finds herself drawn to Kato, who is in a similar situation. One day, after her son witnesses Kato pressuring Reiko, the son suddenly starts assaulting his mother's body and resolves to protect the family…
