Slasher Flick by Spectrum Games is a system designed to recreate the atmosphere of those trashy violent sexually explicit films known as Slasher Flicks or to Roger Ebert, "Dead Teenager Movies".
The genre itself for the most part is basically a thinly veiled cautionary tale about illegal drug use, premarital sex, and generally all that stuff that goes against good christian values. While the premise varies to a degree the key factors are usually the same. A group of photogenic, shallowly characterized young people participate in various forms of debauchery and are then hunted down and horribly murdered by a seemingly unstoppable killer until the killer is finally stopped by the most least debaucherous female member of the cast. This is the most common premise, but I'm not dedicated to sticking to that outline.
The main point of the game is not necessarily to survive, but to have fun roleplaying the characters and situation.