A couple, Tsubasa and Masaya, who love cleanliness. One day, a construction worker doing roadwork in front of their house comes to ask if he can use the toilet. Masaya, who is fastidious, refuses, but the worker forcibly enters the house and urinates all over the bathroom. The next day, while Masaya is out, the workers visit again and, enraged by Tsubasa's nagging, gang-rape her. Tsubasa, who has OCD, initially feels so nauseated she wants to vomit, but gradually begins to feel pleasure from being defiled.
