WhilevisitingToledo,Spain,AmericantouristLisaReiner(ElkeSommer)experiencesafeelingofdejavuwhensheseesanancientmuraloftheDevilcarryingawaythedead.Hearingafamiliarmelody,shewandersawayfromhercompanionsintoaseriesofencounterswithmenwhoinexplicablyrecognizeherfromapastlife.Hopelesslylostasnightfalls,LisabegsaridefromapassingPackard,whichbreaksdownoutsideamansionwhereayoungman(AlessioOrano)liveswithhisblindmother(AlidaValli)andacharmingbutler(TellySavalas),whojusthappenstoresembletheDevilfromthemuraddd!Afteranightofmurder,necrophiliaandhorrificrevelations,Lisacomesface-to-facewiththesecretsofherpastidentityandherconnectiontothebizarreritualsshehaswitnessed.ThisistheoriginalMarioBavafilmlaterreworkedandreshotforAmericanreleaseas"TheHouseofExorcism."