This early hong-kongese action movie is about an Dirty Harry type inspector running after a psychopath killer. We see the point of view of both characters and it sometimes feels like the movie is more about the killer, who's lost his mother at a young age and was traumatized by her violent suicide.
The scenery of the city ils colourful, the action is fast (a murder scene is particularly violent) and the movie know when to slow its pace and install some character momentum : overall, I think it's worth a watch if you're into HK movies (why on earth does it have a rating of only 3.5 ?).