AbigailClayton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。AbigailClayton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FrankGiardello登门造访展开调查，内心恐惧不安的AbigailClayton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。AbigailClayton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。Anheiresswho’sbeenshutinsideherapartmentbuildingfornearlytwodecadesisforcedtoconfrontherfearsafteroneofherneighborsiskilledandadetectivearrivestobegintheinvestigation.AbigailClaytonlivesalone.Veryalone.Infact, theattractiveheiresshasnotleftherManhattanloftapartmentforalmosttwodecades.Thefamousdaughterofawealthyindustrialist, Abigaildisappearedfromthepryingeyesofthepressandtheintrusivenessofherfamilyonher18thbirthday, thedayshereceivedhermassiveinheritance.Duringyearsofself-imposedisolation, Abigailhashadcontactwithonlytwopeople-herbuilding’sConcierge, Klandermann, withwhomshecommunicatesvianotes-andDr.RaymondFontaine, alongtimefamilyfriendandhersoleconfidantformostofherlife.WhenthedeathofherelderlyneighborpromptsNYPDHomicideDetectiveFrankGiardellotolaunchaninvestigation, theagoraphobicAbigailisdistressedtofindhimoutsideherdoor, askingtoquestionher.Havingtriedtoacquirethedeadwoman’snowvacantapartmenttoensureherprivacy...AreclusiveManhattanheiressfindshercarefullystructuredworldbeginningtocrumbleafterherelderlyneighbordies, andayoungcouplemovesintothevacantapartment.Onher18thbirthday, AbigailClayton(SelmaBlair)receivedastaggeringinheritancefromherlatefather, anaffluentindustrialist.Thatsameday, Abigailalsoescapedtheprobinglensesofthepaparazzibysealingherselfawayfromtheworldinhermassiveloft.Nearlytwentyyearslater, theonlypeopleAbigailinteractswithareKlandermann(KevinPollak)theConcierge, andDr.RaymondFontaine(BeauBridges), atrustedfamilyfriend.Oneday, Abigail’selderlyneighbordiesundermysteriouscircumstances, andHomicideDetectiveFrankGiardello(GiovanniRibisi)comesknockingonAbigail’sdoorlookingforanswers.Concernedthattheopenapartmentcouldprovideaperfectperchforpryingeyes, Abigailinquiresaboutpurchasingittonoavail.Shortlythereafter, AbigailspiesCharlie(JasonLee)andLillian(AmySmart)movingintotheapartment.Intheweeksthatfollow, Abigailbeginsreligiouslyusingherpeepholetoscrutinizehernewneighbors’everymove.Butshecan’tstaylockedawayforever, andthemomentAbigailmeetsCharlieandLillianinperson, thenightmarebegins.AbigailClayton(SelmaBlair)livesalone.Veryalone.Infact, theheiresshasnotleftherManhattanapartmentforalmosttwodecades.WhenthedeathofherelderlyneighborpromptsNYPDHomicideDetectiveFrankGiardello(GiovanniRibisi)tolaunchaninvestigation, theagoraphobicAbigailisdistressedtofindhimoutsideherdoor, questioningher.Havingtriedtoacquirethenowvacantapartmenttoensureherprivacy, AbigailisfurtherupsetwhennewtenantsLillian(AmySmart)andCharlie(JasonLee)movein.Abigailanxiouslymonitorshernewneighborsfromthesafetyofherfrontdoor’speephole, butherwell-orderedworldbeginstounravelwhenshefinallyencountersLillianandCharlieface-to-faceandhershelteredexistencebecomesthreatenedinunexpectedandterrifyingways.AbigailClayton独自一人生活，已将近20年没有离开她的公寓。当她的邻居死亡，侦探FrankGiardello登门造访展开调查，她原本秩序井然的世界开始瓦解。AbigailClayton独自