The mafia banishes Jiwoon Kang to live in a secluded red light district among struggling prostitutes, dirty street thugs, and shady drug dealers. He's a quiet man with deadly talents with a knife. The local thugs quickly learn to hate him. To maintain peace, a brothel manager sends Jiwoon to live with a strange local man Soohan. Soohan is a mute. He only wishes to be left alone and help prostitutes in need. The street thugs hate him, too. Both men carry deadly, dark, and traumatic secrets in their past. They may find that their only solace and protection lies in each other.