An undercover agent is assigned by his corrupt chief to infiltrate a rival department and sabotage their investigation of counterfeit currency. What he discovers is the counterfeiter's real plan. To overthrow the capital. Not by flooding it with funny money, but with an army of undead.
Unfortunately the movie The Four is not yet available on HBO Max.
| Directing | Gordon Chan | Director |
| Directing | Janet Chun Siu-Chun | Director |
| Directing | Kong Lingping | Assistant Director |
| Writing | Gordon Chan | Writer |
| Writing | Frankie Tam | Writer |
| Writing | Maria Wong Si-Man | Writer |
| Production | Gordon Chan | Executive Producer |
| Production | Gordon Chan | Producer |
| Production | Abe Kwong | Producer |
| Sound | Henry Lai Wan-Man | Original Music Composer |
| Camera | Lai Yiu-Fai | Director of Photography |
| Editing | Chan Ki-Hop | Editor |
| Production | Bruce Yu | Production Designer |
