Aaron, a 17 year old girl, and her 19 year old brother Mike have been left alone since Aaron was 14 when their parents were viciously murdered by an unknown killer. Living in their parents' tiny, old house, Aaron and Mike barely made enough money from their low-paying jobs to get by. On a weekend, they decide to take a trip into the woods near their house for a picnic and a little relaxation. However, it proves fatal when Aaron almost drowns, then is attacked by a werewolf. But things don't get better after that.