According to my Vengeance video case this story is based on actual events that took place in Shanghai 1919. And that is the key to this film. 90% of the film is a drama about several Chinese being framed by the local police (led by Hwang Jang Lee) over the loss of a gwailo's Boxer dog. For the period the photography and direction are rather good with the help of authentic buildings and locations and only limited use of sets. The bad news is that the subtitles are almost unreadable and the film doesn't seem to have been restored and is grainy at times with fluctuating light and colour levels. But the story is gripping and when Philip Ko does fight they are very good indeed. In fact the final fight between Ko and Hwang is very evenly matched and both seem to be on superb form producing an outstanding bout with a clever ending. I must mention Lau Hok Nin's acting and the old mother Lam Jing who give very good dramatic performances not even seen in this sort of film. This is not your usual hit everything / everyone film but a good drama with one of the best climax fights ever filmed.