"Black Hair" Yeon-sil (Moon Jeong-suk) is the lover of crime boss Dong-il (Jang Dong-he). She pays off one of the boss's henchmen, Man-ho (Chae Rang), with whom she once had an affair; Man-ho is an opium addict, and he has been blackmailing Yeon-sil by threatening to disclose their past relations.