The film is unusual in that although featuring Sammo Hung and Lam Ching-ying, two actors famed for their kung fu abilities, neither actually perform any martial arts.

The bad guys are led by James Tien and include Dick Wei, Chung Fat, Phillip Ko and Kao Sau-leung.

The film also features a small role for Wu Ma as a restaurant owner and, like My Lucky Stars, Sammo Hung's real life brother makes a cameo appearance as a policeman (who walks into Inspector Wong's office without knocking).

As this was intended as a dramatic film, showing a different side of Hung's acting abilities, it contains comparatively few action scenes.

Due to the demands of certain markets, these scenes were included in some prints of the film, notably the Japanese release.