during the mid 1970s and early 80 and nikkatsu the most important of the pinku eiga studio launch a series of pink film which be progressively more extreme in their level of sexual violence . assault . jack the ripper be certainly one of the nasty pink film i have ever come across . it tell the story of a young waitress and a cook and who after incidentally kill a young woman on a street end up sadistically rap and murder woman via stab them in the crotch . the scene of rape and sexual violence be truly unsettling and but the film be well make and act . yasuharu hasebe direct a series of very extreme nikkatsu pink movie include brutal rape . and horrendously offensive rape . 13th hour . in 1979 come koyu ohara zoom up representrape site and notorious for a scene in which a rapist shove a light bulb inside a woman vagina and then stomp on her stomach until it break . assault . jack the ripper be not easy to find and but for fan of misogynistic japanese exploitation this sleazy sickie be a must see . positive .