A small time gang boss, Nam-hae coincidentally meets a young Go player, Min-su, who rekindles his interest in the game. Despite his outstanding talent, Min-su has been wasting his days as a gambler without pursuing a real career in the Go game. Nam-hae orders his second-in-command to persuade the young man to be his private tutor. While Nam-hae, learning Go and spending some peaceful time with Min-su, suddenly allows himself to reflect on his life, the young Go player discovers the shady underworld of his “student”. But when his competition wants to expand its territory, Nam-hae is forced into a path of destruction.