The Nationwide Constituency 2

Min-young moves onto the fifth floor of a new studio apartment with her six-year-old daughter, Joo-hee. She’s concerned when her downstairs neighbor, Han Chang-soo, says that he cannot tolerate the noise above him, even though the two women live tranquilly. Furthermore, she is anxious about other residents’ strange behavior, never mind the mysterious deaths. Min-young hardens herself mentally after the move into the new house, largely because of her daughter’s unprecedented odd behavior and continual run-ins with a bizarre woman. Convinced that Joo-hee has fallen sick and perturbed by the mysterious events around the studio apartment, Min-young looks to uncover the truth by herself…

Dragon Lee stars as Baek-chon, a small time gangster who quickly rises to power following a shake up in his organization. The gang boss was shot and, before succumbing to his wounds, proclaims Baek-chon to be his successor. Per his chief's final instructions, Baek-chon makes each member of the gang sign a document in blood declaring the rules of conduct of the gang. First and foremost is that no one will deal in drugs. Naturally, all of this doesn't sit well with Hyun-tae, another gangster who resents Baek-chon's rise to power and seeks to exploit the lucrative nature of narcotics. Hyun-tae plots to kill Baek-chon, a plan that ultimately fails but sees Baek-chon sent to jail for manslaughter after defending himself. While in jail, Baek-chon befriends one of Hyun-tae's underlings. When both men are eventually released from jail, Baek-chon seeks to avoid conflict but when Hyun-tae murders his friend, Baek-chon seeks his revenge.

Third part of the trilogy. Dragon Lee is not in this one.