When six friends head out for a night on the town that they will not be having the time of their fright of their lives. Upon having their van mysteriously start going awfully wrong. Immediately their van by a creature, half human and half something else. that the creature is more female then male she the average human... Abandoning the security or the lack of security of friends find refuge in an outwardly deserted building. To building is a run down, abandoned asylum. Once making themselves comfortable in the asylum haunting takes place. The friends discover the name of Lydia Harrison, was admitted to the asylum had slain a number of people after much cruelty assigned to her by her cheerleading coach and fellow peers. Soon enough she snaps, and it becomes very clear that Lydia is on a new revenge mission, playing for keeps until her goal is accomplished. The horrors are a clear sign of a psychotic rage. Claudia and Karl figure out that Lydia needs six mortal people to complete her journey. After Lydia takes her victims one by one she becomes more evil and much stronger. The crew of friends find themselves facing death one by one until only Claudia and Karl are left.