Kill Theory (2010)

Feast producer Chris Moore makes his feature directorial debut with this shocker concerning a group of vacationing college graduates who become the unwilling participants in a sadistic game of kill or be killed. Having just completed their finals and received their diplomas, a small group of recent college graduates decide to celebrate their accomplishment by taking a trip to a secluded cabin in the woods. Just as they're settling in for the time of their lives, however, a violent psychopath arrives to inform them that they are now all contestants on a vicious game of survival. The rules are simple: kill all of your friends, and the last person left standing is the winner. As the reality of their grim situation slowly sinks in, the tensions ramps up and relationships between old friends start to buckle under the weight of fear.