In her fifth year of marriage, Mio's husband suddenly disappeared, leaving behind only a note saying, "Don't worry, I'll definitely come back," which left her heart shattered. Suddenly, a man claiming to be a debt collector appears, demanding she repay her husband's debts with her body. He forcefully rapes her, then drugs her, kidnaps her, and holds her captive. Overwhelmed by fear and anxiety, Mio faces a terrifying ordeal. The dramatic story unfolds as she struggles to escape her desperate situation.