The "Twilight of the Warriors" trilogy directed by Soi Cheang.
In 1980s Hong Kong, troubled youth Chan Lok-kwun, a mainland refugee, struggles to survive in the Kowloon Walled City by joining underground fights. Betrayed by crime boss Mr. Big while trying to buy a fake ID, he steals drugs from him and seeks refuge in the Walled City, where he encounters Cyclone, a compassionate yet authoritative crime lord.
The second installment of the Twilight of the Warriors trilogy. In 1950s Hong Kong, brothers Lui Cheng-tung and Chen Jim fled to the lawless Kowloon Walled City at the peak of their careers. They endured hardships, waiting for a chance to reclaim their losses. During this time, they encountered a man who significantly influenced their struggle to regain what they had lost.
The final installment of the Twilight of the Warriors trilogy.