Shock exploitation films (shock films), are films containing content designed to be particularly shocking to the audience. These type of exploitation films focus content traditionally thought to be particularly taboo for presentation in film, such as extremely realistic graphic violence, graphic rape depictions, simulated zoophilia and depictions of incest. Examples of shock films include Last House on the Left, Fight For Your Life, Run and Kill, Bald Headed Betty, Last House on Dead End Street, Men Behind the Sun, SalÃ², Vase de Noces, Baise-Moi, Thriller: A Cruel Picture, Haute Tension, I Spit On Your Grave and Assault on Precinct 13. Popular film critic Roger Ebert has gone on record saying that the film I Spit On Your Grave is "sick, reprehensible and contemptible". Sometimes these films purport to be the retelling of a true story, such as the Japanese film Concrete (also known as Schoolgirl in Cement), which dealt with the Junko Furuta murder. The sub-sub-genre of simulated "snuff" films might also belong here, such as the infamous second installment of the Guinea Pig films; è¡€è‚‰ã®èŠ± (Chi-niku no hana - also known as Flower of Flesh and Blood), also from Japan.