The roman porno flick Bôkô Kirisaki Jakku was called Assault: Jack the Ripper in English, and that pretty much tells you what happens. Tamaki Katsura stars as a waitress in a dead end job who hits the road seeking thrills. She coerces nerdy Yutaka Hayashi into giving her a ride, and the two later pick up a hitchhiker, who through bizarre circumstances ends up dead. Something about the sight of blood activates a need to repeat the experience, which they do by kidnapping and killing young women, then having sex next to the bodies. The weapon of choice is unusual—it’s a cake knife, the kind you might use to spread frosting. We’d have thought a dagger or hunting knife would work better, but cake is symbolic in the film, so a cake knife is a logical choice. While it doesn’t look sharp, somehow it goes through flesh like butter. Technique is everything.
