After her husband's promotion is secured, their boss, Tsuchida, is invited to their home—an event that gradually unravels a dark and disturbing story. Serina had secretly desired to be taken by Tsuchida, but he exploits this by threatening to revoke her husband's promotion, using blackmail to coerce and repeatedly rape her. Desperate to protect her husband from heartbreak, Serina submits to Tsuchida's demands, only to be pushed further into despair with each encounter. As the situation spirals out of control, she loses all means of defending herself.