Lee Sang-gyu

Joong-ho is a dirty detective turned pimp, who's in financial trouble as several of his girls have recently disappeared without clearing their debts. While trying to track them down, he finds a clue that the vanished girls were all called up by the same client, whom one of his girls is meeting with right now.

Ha-eun, an ordinary housewife who has endured her husband's violence for 13 years, challenges her husband, who is a mixed martial arts champion, to a duel in the ring.