Tense supernatural horror set in a sanatorium. For the past 50 years the ghost of an insane patient who escaped his ward and murdered three children in their sleep is rumoured to have haunted the halls of Hillcrest Sanatorium. Now a group of paranormal researchers venture into the asylum as part of a TV show to try and find conclusive evidence for the infamous voices and ghostly appearances. But as the investigators journey deeper into the run-down asylum, members of the crew begin to mysteriously vanish, lessening their number one by one. Will any of the team survive to present their discoveries to the world?