The story tells the story of a collusion between Hong Kong police and criminals in 1973, under the instigation of the British, they embezzled huge profits and poisoned the citizens. The Governor of Hong Kong established the Independent Commission Against Corruption
Unfortunately the movie Once Upon a Time in Hong Kong is not yet available on HBO Max.
| Writing | Wong Jing | Writer |
| Directing | Woody Hui Ngai-Ming | Director |
| Directing | Wong Jing | Director |
| Crew | Chi Shui-Tim | Pyrotechnician |
| Writing | Woody Hui Ngai-Ming | Writer |
| Writing | Ronald Chan Kin-Hung | Writer |
| Writing | Lui Koon-Nam | Writer |
| Production | Wong Jing | Producer |
