Movies like Nameless Gangster: Rules of the Time

Ik-hyeon is a corrupt customs officer who lives off bribes paid by the contraband smugglers. One day, after his financier rats him out, Ik-hyeon is visited by the inspector and faces losing his job. He runs into a group of armed criminals while on patrol and recovers a large lump of heroin. To sell off the drug, Ik-hyeon hooks up with Hyeong-bae who has connections with the Yakuza. He finds out that his liaison is related to him and quickly a partnership is formed; Hyeong-bae helps out Ik-hyeon set up a new business with the drug money, while Ik-hyeon lobbies for his partner through his family connection. However, the partnership turns sour over dealings with a rival organization. Soon after, the government declares war on crime and Ik-hyeon decides to take the opportunity to set up his partner and escape the tightening grip of the law enforcement.