 Set in the 1920s, the film tells the story of Cantonese native Cheung Yat-pang (Andy Lau) whom recently returned from France to Nanjing after further studies and has been appointed by the government to be the first Commissioner of the opium trade ban.He accompanies his wife to Shanghai and is determined to outlaw illegal opium trade, fighting with drug lords and corrupt evil forces.The film grossed HK$10,017,864 at the Hong Kong box office during its theatrical run from 21 July to 3 August 1994 in Hong Kong.