Mika and Masato are childhood friends and engaged to be married. One day, a man named Kita, who used to work at the same place as Masato, comes to visit. Kita works as a door-to-door salesman selling cosmetics, and persistently urges Mika to buy some. Kita is in debt to a yakuza group, and is forced to help with various types of business, including unscrupulous sales practices. With no other options, Kita boils over with anger and kidnaps Mika, who is alone at home, in order to protect himself. Later, Masato receives a DVD containing footage of Mika being brutally gang-raped...