AgroupofdocumentaryfilmmakersarefilmingaTVspecialabouttheeventswhichoccurredatthefamousandmysteriousabandonedCainHillasylummanyyearsearlier,andtheunexplainedabductionsandmurdersthathaveoccurredatthesitesincethen.ThegroupsoonlearnthatoneoftheinmatesneverleftCainHillatallaaa
