There's a killer in the woods ... one you can't hear ... one you can't see ... one you can't escape.

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. When Karen gets sick, they grow paranoid that they have become infected with a flesh-eating virus.

The struggle against the repulsive killer turns into a battle against friends, as fear drives them to turn on each other in the fight for survival.

Director Eli Roth takes the horror genre back to its roots and reminds us of how risky and totally insane horror movies used to be.