AbigailClayton独自一人生活，已将近20年没有离开她的公寓。当她的邻居死亡，侦探FrankGiardello登门造访展开调查，她原本秩序井然的世界开始瓦解。AbigailClayton独自一人生活。一个人非常孤独。实际上，这位女继承人没有离开她的曼哈顿公寓已将近20年。当她年迈的邻居死亡促使纽约市警察局凶杀案侦探FrankGiardello登门造访展开调查，内心恐惧不安的AbigailClayton看到那位侦探在她门外，询问她。AbigailClayton曾试图收购现在空置的那个公寓以确保她的隐私，当新租户莉莲和查理搬进来时就更加烦恼了。AbigailClayton焦急地从她的前门的安全窥视孔监视她的新邻居，但当她终于面对面地遇到了莉莲和查理时她原本秩序井然的世界开始瓦解，她庇护的存在也开始成为意外和恐怖的方式威胁着。Anheiresswho’sbeenshutinsideherapartmentbuildingfornearlytwodecadesisforcedtoconfrontherfearsafteroneofherneighborsiskilledandadetectivearrivestobegintheinvestigation.AbigailClaytonlivesalone.Veryalone.Infact, theattractiveheiresshasnotleftherManhattanloftapartmentforalmosttwodecades.Thefamousdaughterofawealthyindustrialist, Abigaildisappearedfromthepryingeyesofthepressandtheintrusivenessofherfamilyonher18thbirthday, thedayshereceivedhermassiveinheritance.Duringyearsofself-imposedisolation, Abigailhashadcontactwithonlytwopeople-herbuilding’sConcierge, Klandermann, withwhomshecommunicatesvianotes-andDr.RaymondFontaine, alongtimefamilyfriendandhersoleconfidantformostofherlife.WhenthedeathofherelderlyneighborpromptsNYPDHomicideDetectiveFrankGiardellotolaunchaninvestigation, theagoraphobicAbigailisdistressedtofindhimoutsideherdoor, askingtoquestionher.Havingtriedtoacquirethedeadwoman’snowvacantapartmenttoensureherprivacy...AreclusiveManhattanheiressfindshercarefullystructuredworldbeginningtocrumbleafterherelderlyneighbordies, andayoungcouplemovesintothevacantapartment.Onher18thbirthday, AbigailClayton(SelmaBlair)receivedastaggeringinheritancefromherlatefather, anaffluentindustrialist.Thatsameday, Abigailalsoescapedtheprobinglensesofthepaparazzibysealingherselfawayfromtheworldinhermassiveloft.Nearlytwentyyearslater, theonlypeopleAbigailinteractswithareKlandermann(KevinPollak)theConcierge, andDr.RaymondFontaine(BeauBridges), atrustedfamilyfriend.Oneday, Abigail’selderlyneighbordiesundermysteriouscircumstances, andHomicideDetectiveFrankGiardello(GiovanniRibisi)comesknockingonAbigail’sdoorlookingforanswers.Concernedthattheopenapartmentcouldprovideaperfectperchforpryingeyes, Abigailinquiresaboutpurchasingittonoavail.Shortlythereafter, AbigailspiesCharlie(JasonLee)andLillian(AmySmart)movingintotheapartment.Intheweeksthatfollow, Abigailbeginsreligiouslyusingherpeepholetoscrutinizehernewneighbors’everymove.Butshecan’tstaylockedawayforever, andthemomentAbigailmeetsCharlieandLillianinperson, thenightmarebegins.AbigailClayton(SelmaBlair)livesalone.Veryalone.Infact, theheiresshasnotleftherManhattanapartmentforalmosttwodecades.WhenthedeathofherelderlyneighborpromptsNYPDHomicideDetectiveFrankGiardello(GiovanniRibisi)tolaunchaninvestigation, theagoraphobicAbigailisdistressedtofindhimoutsideherdoor, questioningher.Havingtriedtoacquirethenowvacantapartmenttoensureherprivacy, AbigailisfurtherupsetwhennewtenantsLillian(AmySmart)andCharlie(JasonLee)movein.Abigailanxiouslymonitorshernewneighborsfromthesafetyofherfrontdoor’speephole, butherwell-orderedworldbeginstounravelwhenshefinallyencountersLillianandCharlieface-to-faceandhershelteredexistencebecomesthreatenedinunexpectedandterrifyingways.AbigailClayton独自一人生活，已将近20年没有离开她的公寓。当她的邻居死亡，侦探FrankGiardello登门造访展开调查，她原本秩序井然的世界开始瓦解。AbigailClayton独自