For me, there are two kinds of Category III films, those that challenge and shock and those that are just soft-core bollocks. It goes without saying that The Rapist has rape sequences in it, some prolonged and unpleasant yet there remains a skill behind and in front of the camera that elevates it from pure gutter cinema. Basically the film is a fictionalized look at a real life serial rapist that haunted the apartment blocks of Tuen Mun in Hong Kong. A sordid string of assaults expanded into murders, with police seemingly hopeless to catch the man. He ended up caught in bizarre circumstances, police concluding that his actual victim count may be higher that thought.
The Rapist is never named in the movie and remains a cipher of sleaze and coldness, portrayed by Kar-Sing Lee as a damaged man-child who manages to be scarier than the usual gurning monsters in these films. In a fresh take, the cops work as cops, doing the sort of rolling shift shit work you imagine them doing instead of joking about tits as Danny Lee's officers always seem to do. Kwok Pong Chan is damn fine as the lead hard boiled cop, just given just a twist of humanity to make him a little more fleshed out. Kwok Pong Chan is an under-rated player, propping up some other lesser known Cat III flicks such as Gates Oh Hell. He seems to have an alias as Power Chan which is one hell of a name.
At the end of the day though, The Rapist is a film concerning a rapist, told in a cold, clinical, sterile fashion, using harsh lighting and decayed urban settings along with icy synths. The film is directed with a steady hand by Cha Chuen-Yee, who is probably best known for his Triad Socity duology. Sometimes very ugly, it never feels exploitative when of course it totally is. Compare it with the Grand Guignol of similar movies and you are left with something approaching a linear, straight ahead cop movie that happens to feature extended sequences of sexual brutality. Whether or not people wish to take in The Rapist with its stark brutality is up to them but for those up for a challenging view, with a nod to a compelling true crime piece The Rapist is superior product of its type.