Kim Hee-jin

Kim Sun-woo is an enforcer and manager for a hotel owned by a cold, calculative crime boss, Kang who assigns Sun-woo to a simple errand while he is away on a business trip; to shadow his young mistress, Hee-soo, for fear that she may be cheating on him with a younger man with the mandate that he must kill them both if he discovers their affair.

Jong-dae and Yong-ki make a living by picking up paper and empty bottles. Both then join different gangster clan and becomes involved in a struggle of political interests over development in Gangnam, Seoul.

A detective accidentally kills a man and disposes of the body to protect his career. The next day he sees that someone has hanged the corpse from a crane for all to see. He takes charge of the murder investigation to protect himself and find out who did it.

Jjang-gu joins "Monster," a violent organization at his high school. As a rite of passage, he learns a lesson about being a man while following the course.