The Wicked City (Chinese: 妖獸都市; Cantonese Yale: Yíu sau dōu síh) is a 1992 science fiction film directed by Peter Mak and produced by Tsui Hark.

[2] It tells fictional story of conflicts and relationship between demon-like creatures and humans in 1990s' Hong Kong.

[3] The story takes place in Hong Kong in a conflict between worlds of Humans and "Rapters" ("Reptoids" in some dubbed versions) before the handover.

A special police unit in the city are investigating a mysterious drug named "Happiness".

Taki and other special police members track down and fight Daishu, but later find that he hoped to coexist with humans.

Taki (or "Leung", played by Leon Lai) is a sales of a Hong Kong import/export company, but that is only his cover.

However Taki was afraid he will step into Ken's father's shoes, and he eventually ran away from Windy.

Once Taki is back in Hong Kong from Tokyo, the unit begins investigation on an addictive and harmful performance-enhancing drug named "Happiness".

On the other hand, Daishu and his raptor staffs are having a meeting, because they don't know who is importing Happiness the drug either.

Orchid doesn't care about either humans or rapters, she only wants to make money and leave the city to survive the energy crisis.

On the other hand, Sergeant Kayama's announcement to suspend Ken is a trap to lure out the real traitor.

Sergeant Kayama kills Orchid in cold blood, and leads a team to go after Taki.

Sergeant Kayama's team put the aircraft on the tip of Bank of China Tower.

With remorse of failing to prove his humanity, Ken dies in arms of Sergeant Kayama.

On a car, Daishu dies for depletion of energy, hoping humans do not need any more "happiness", leaving only Windy drives away from the city alone at dawn.

The filmmakers also used black light on Shudo's special make-up and creature costume to make him glow in the darkness.

Monster transformations and abilities were done with simple optical effects such as double exposure and step frame printing (Morton, 2001).