The film tells the story of Chen Baili's father, the director of the Shanghai Police Department, who was bizarrely murdered for investigating the theft of state secrets. In order to find out the truth, Cha Li and his assistant Ai Li returned to Shanghai from the United States for investigation.
Hap Hak Hang is a Hong Kong television series adapted from Louis Cha's novel Ode to Gallantry. The series was first broadcast on TVB in Hong Kong in 1989.
