Vikki, an innocent young woman falls victim to her own psychosis brought on by a man, Clayton, who's end goal is to rid the world of those different than him. By drugging his victims and not only causing self-mutilation, but horrible violence against anyone around them, he compels others to murder for him. What's supposed to be a relaxing weekend for four friends quickly turns into a fight for survival in the middle of the North Carolina wilderness.

A convicted robber (lead villain) loses his wife and child after being sentenced to prison. While away he meets another crook who mentions a "job" he worked with a fellow thief that ended in a monumental score but also jail time for the pair. The second man hid the money at the home of his wife and teen-aged daughter before being sent to a separate facility than the first two men including the lead villain. When he learns of the money's whereabouts he escapes prison to head for the family's farmhouse. When he arrives he masks his identity to the family, gaining their trust. But soon after they find the true reason behind his arrival. The story then turns into a fight for survival with the mother and daughter against the escaped prisoner.

As a mother becomes suspicious that her daughter may be infected by a parasitic creature, she is thrust into a nightmare as the people she trusts most push her into a chasm of drug addiction, self-destruction, and devastating sacrifice.