The Drug King(2018)

He who was a criminal and a patriot.

Busan, South Korea, 1970s. Lee Doo-sam is a small-time smuggler. After helping a drug gang to smuggle meth, he falls into the dark crime world. Quick-witted and full of ambition, he eventually takes over the drug underworld and starts to lead a double life: a good community leader during the day but an infamous drug lord during the night.