The idea of the director of Saw II, III and IV going at Paris Hilton seems like just revenge for her punishable assaults on acting. In this atonal, faux-arty rock opera about a futuristic bull market in internal organs, Hilton is suitably clueless as Amber Sweet, the daughter of an aria-singing mob boss (Paul Sorvino). Amber trades in her organs like fashion accessories. But a new pancreas costs money. Don’t pay, and the Repo Man will tear out your guts. It gets worse, much worse. Talented actors are involved, and I will spare them by not citing their names. “Happiness is a warm scalpel,” sings Hilton. Misery is enduring this Rocky Horror Paris Show.