Sunwoo(Jeong-min Hwang) is an enforcer and hotel manager for underworld boss Mr.Kang (Kim Yeong-Cheol). The film starts with sunwoo having a run in with some hoods from a rival gang run by Baek(Jeong-Min Hwang). After which Sunwoo is invited to dine with Mr.Kang, where they discuss the rival gang and Mr.Kang confides in Sunwoo that he is seeing a younger women. Kang has to go away on business for a few days,and worried that she might be seeing someone else he asks Sunwoo to watch over her, and if he discovers anything to take care of it. Sunwoo spends the next 3 days watching over Hee-soo(Min-a Shin),getting to know her,so when he discovers that she is in fact in love with a young man he uncharacteristically shows them mercy ... telling them not to see each other again,and never to talk about it. Baeks men grab Sunwoo in the night and take him to a warehouse to exact their revenge, but before they can kill him the phone rings and Sunwoo is bundled into a van and dropped off by the side of the road,only to find himself surrounded by Mr.Kang and his men. Kang has found out about his act of disloyalty by showing mercy to Hee-Soo. Kang departs leaving Sunwoo to his fate and Mun-Suk(Roe-Ha Kim) another enforcer who was early made to look stupid by Sunwoo. Mun-Suk gives Sunwoo 15 minutes and a mobile phone to think about things,and to ring Kang and beg for mercy, as he is left to think things over Sunwoo realises he must fight to survive and when Mun-Suk returns he attacks him,fighting his way out. His only choice now is to kill Baek and Kang before they kill him. He sets up a deal to buy guns and goes about his blood-soaked revenge.