AgroupofdocumentaryfilmmakersarefilmingaTVspecialabouttheeventswhichoccurredatthefamousandmysteriousabandonedCainHillasylummanyyearsearlier,andtheunexplainedabductionsandmurdersthathaveoccurredatthesitesincethen.ThegroupsoonlearnthatoneoftheinmatesneverleftCainHillatallaaa