Thisearly70'sgiallobyUmbertoLenziiscertainlyamongthebestinhisfilmographyandalsointhewholegenre.PersonallyIthinkLenzi'sbestfilmsarethefunnycartoon-turned-filmKriminal,thestylishgialloSevenBlood-StainedOrchids,theexplosiveNapoliviolentaandthis.IntheeightieshedidplentyoffilmtrashinformofEatenAlive,HitcherintheDarkorBlackDemons,allofwhicharerippingsomethingoffandorverydullandslowmoving.KnifeofIcecamewhenthegialloboomwasatitshottestandtheresultisconvincing.　　Technicallythefilmissuperb,containinggreatcinematographyinthebeginningwhenwelearnaboutthemaincharacter'straumatowardstrains.Fromthispointon,Lenzishowsushisabilitytobenefitthewidescreenand,forexample,thebicyclerideneartheforestisgenuinelybeautifu导演选择克制的艺术方式。现代技术为历史影像注入活力，全彩修复增强视觉体验，画面呈现提升观看维度。但影片不刻意突出技术，整体色调保持沉稳。整体处理注重人文关怀。色彩管理体现历史意识，声音设计追求简约表达。!ThisscenealsoshowsLenzi'sabilitytobuildsuspense,veryslowlybutmeaningfully.Afterall,therearen'tsomanymurdersinthewholefilm,onlythesuspensecirculatingaroundthemurderer'sidentity.　　Onesuspectisadevilworshipperwhichbringsnewaspectstothemystery.Sincethefinalscenetakesplaceinachurch,onecanwonderifLenziwantedtocommentonsomething,maybethehypocriticalmoraleofchurchandsuperstition.Themaincharacter(CarrolBaker)ismutewhichdemandsalotfromherfaceandeyes.Theactressworksverywell,givingusabelievableperformancecirculatingaroundtheemotionsoffearandmentalpain.Theotheractorsaregood,too.Thefinally,however,maynotgivetoopositiveasightaboutfemalesexsincetheyallareexpressedrathernegativelyinthefilm,onewayoranother.Stillthisiseasilyamongthemostnoteworthyinthegenre,notasbloodyastheArgentofilms,forexample,butequallysuspensefulandvisuallyalsointeresting.