Emily has just purchased a remote home near an institution to provide better care for her brother Zach who is crippled with a severe form of Cerebral Palsy. During their first evening the group discovers strange symbols etched into the boards on the windows. They begin to clear away the symbols in the effort to clean the house, but soon realize just how serious of a mistake that was. One by one the group of friends become possessed by the evil spirits that haunt the cabin causing chaos that will forever be scarred into the mind of whoever survives.

Five strangers - newlywed serial killers, a suicidal cop, and two runaways - become suspect and victim when a masked murderer makes its presence known in an isolated mountain town.