Eli Roth's low-budget comedy-horror. Fresh out of college, Jeff, Karen, Paul, Marcy and Bert head up to a remote cabin for a weekend of alcohol-drenched sex and sunbathing. However, they are joined by an unwelcomed visitor, a tramp with a nasty skin virus. The friends decide to try and get rid of him and when he does eventually stumble away he falls into the local stream and contaminates the water. Having to use the water, the friends soon find themselves contaminated and discover that each one of them will stop at nothing to survive...