AbigailClayton独(dú )自(zì )一人生活(huó ),已将(jiāng )近(jìn )20年没有离(🎺)开她的公寓。当她的(de )(🍖)邻(🔬)居(jū )死亡,侦探FrankGiardello登门造访(🕔)展(zhǎn )开调查,她原本(🕖)秩序井(jǐng )然的世界(jiè )开始瓦解。AbigailClayton独自一人生活。一个人非常孤独。实际上,这位(wèi )女继承人没(méi )有离开(🦗)她的曼哈(hā )顿公寓已(🗞)将近20年。当她年迈的邻居死亡促使纽(🎾)约市警察局(🥫)凶(🤷)杀(shā )案侦(zhēn )探FrankGiardello登(🚴)门造访(fǎng )展(zhǎn )(🕯)开调(👣)查,内(🈁)心恐惧(💹)不安的(de )AbigailClayton看到那位侦(🃏)探在(💅)她门(🚶)外,询问她。AbigailClayton曾试图收购(gòu )现(xiàn )在空(💸)置的那个公(gōng )寓以(yǐ )(🚲)确保(bǎo )她(🌂)的隐私,当新(🖍)租户莉莲和查理搬进(🚽)来时(🍁)就(jiù )更加烦恼了。AbigailClayton焦(🕺)急地(dì )从(cóng )(😉)她(tā )(🚤)的(de )(🚩)前门的安全窥(kuī )视(⏺)孔监(🔮)视她的新邻居(jū ),但(dàn )(💕)当她(🚪)终于面对面地(dì )(😲)遇(🐅)到了莉莲和(hé )查理(🛃)时她原(yuán )本秩序井然(♊)的(👆)世(🔍)界开始瓦解(jiě ),她(tā )庇护的存(cún )在也开(kāi )(🕌)始成为意外和恐怖的方式威胁着。Anheiresswho’sbeenshutinsideherapartmentbuildingfornearlytwodecadesisforcedtoconfrontherfearsafteroneofherneighborsiskilledandadetectivearrivestobegintheinvestigation.AbigailClaytonlivesalone.Veryalone.Infact,theattractiveheiresshasnotleftherManhattanloftapartmentforalmosttwodecades.Thefamousdaughterofawealthyindustrialist,Abigaildisappearedfromthepryingeyesofthepressandtheintrusivenessofherfamilyonher18thbirthday,thedayshereceivedhermassiveinheritance.Duringyearsofself-imposedisolation,Abigailhashadcontactwithonlytwopeople-herbuilding’sConcierge,Klandermann,withwhomshecommunicatesvianotes-andDr.RaymondFontaine,alongtimefamilyfriendandhersoleconfidantformostofherlife.WhenthedeathofherelderlyneighborpromptsNYPDHomicideDetectiveFrankGiardellotolaunchaninvestigation,theagoraphobicAbigailisdistressedtofindhimoutsideherdoor,askingtoquestionher.Havingtriedtoacquirethedeadwoman’snowvacantapartmenttoensureherprivacy...AreclusiveManhattanheiressfindshercarefullystructuredworldbeginningtocrumbleafterherelderlyneighbordies,andayoungcouplemovesintothevacantapartment.Onher18thbirthday,AbigailClayton(SelmaBlair)receivedastaggeringinheritancefromherlatefather,anaffluentindustrialist.Thatsameday,Abigailalsoescapedtheprobinglensesofthepaparazzibysealingherselfawayfromtheworldinhermassiveloft.Nearlytwentyyearslater,theonlypeopleAbigailinteractswithareKlandermann(KevinPollak)theConcierge,andDr.RaymondFontaine(BeauBridges),atrustedfamilyfriend.Oneday,Abigail’selderlyneighbordiesundermysteriouscircumstances,andHomicideDetectiveFrankGiardello(GiovanniRibisi)comesknockingonAbigail’sdoorlookingforanswers.Concernedthattheopenapartmentcouldprovideaperfectperchforpryingeyes,Abigailinquiresaboutpurchasingittonoavail.Shortlythereafter,AbigailspiesCharlie(JasonLee)andLillian(AmySmart)movingintotheapartment.Intheweeksthatfollow,Abigailbeginsreligiouslyusingherpeepholetoscrutinizehernewneighbors’everymove.Butshecan’tstaylockedawayforever,andthemomentAbigailmeetsCharlieandLillianinperson,thenightmarebegins.AbigailClayton(SelmaBlair)livesalone.Veryalone.Infact,theheiresshasnotleftherManhattanapartmentforalmosttwodecades.WhenthedeathofherelderlyneighborpromptsNYPDHomicideDetectiveFrankGiardello(GiovanniRibisi)tolaunchaninvestigation,theagoraphobicAbigailisdistressedtofindhimoutsideherdoor,questioningher.Havingtriedtoacquirethenowvacantapartmenttoensureherprivacy,AbigailisfurtherupsetwhennewtenantsLillian(AmySmart)andCharlie(JasonLee)movein.Abigailanxiouslymonitorshernewneighborsfromthesafetyofherfrontdoor’speephole,butherwell-orderedworldbeginstounravelwhenshefinallyencountersLillianandCharlieface-to-faceandhershelteredexistencebecomesthreatenedinunexpectedandterrifyingways.