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.

In this prequel to the original, a bloody power struggle among the Triads coincides with the 1997 handover of Hong Kong, setting up the events of the first film.

The life story of a young man who has been pursuing an impossible love with his straight boyfriend and contemplating on the mortality of his loved ones.

Teenage best friends Zoe and Becca set out to build their own fake ID empire, but when business starts booming, their life of crime gets way too real.

When a terrorist who specializes in explosives takes hold of an underground tunnel, he threatens to kill hostages if his demands are not met.

A gambler is targeted for murder during the wedding of his daughter to his protege.

In a city of love and prosperity, a city of lost hope and premature death, veteran detective Hei feels it all: the hurt, the helplessness, the horror. When his father-in-law, the billionaire benefactor Kim, is gruesomely murdered in his palatial mansion, he enlists the assistance of his former partner turned private detective.

Hong Kong Customs and Excise Department officers Chow Ching Lai and Cheung Wan Nam share a close mentor-student relationship. On a case involving seized smuggled arms, Chow is sent to take part in a joint operation with Interpol to capture a reclusive arms dealer. However, Cheung makes a drastic decision that further complicates the case.

Ho Sau, an undercover agent, has been working with Yau, a drug lord, for years, but his job and family are in trouble.

Soaring property prices drive dwellers to take every insane effort necessary to secure a cramped space, even if it means sharing the same roof with the dead.

An aging Hong Kong couple move to Australia with their two youngest sons. They stay with a daughter who has already begun a successful career. Meanwhile their eldest daughter lives in Germany and their eldest son remains in Hong Kong. The film explores the different ways the family members cope with isolation and alienation.