Wakamatsu has a reputation for making divisive and unflinching films, but this one offers a whole new level of nihilism. The title says it all really, the film follows a serial rapist on his murderous rampage. He wanders around, talks to random women, isolates them, rapes them and kills them.
And that's pretty much it. Little to no context is given to explain his actions, his victims remain completely unknown to the audience, all we get to see is the continuous torture, shot in a very detached and matter-of-fact way. It's not a very pleasant film to watch, neither is it very titillating, but if you like dark and relentless films, is it quite impressive.
The presentation is pretty cheap though. Wakamatsu's camera merely registers, there's little in the way of a soundtrack and the actors aren't exactly A-grade material either. It's clearly a film made on the cheap, but it does get its message across. An interesting watch for Wakamatsu fans, but it's pretty hard to recommend.