WhenJonathan'sparentsdieinanaccidenthemovesbacktohischildhoodhometotakecareofhislittlesisterRebecca.Jonathanstartsisolatinghimselfinhisnewroutineandquicklyloosestouchwiththerestoftheworld.WhenRebeccaexpressesherconcernsforhimhedecidestoinvitehisoldgroupoffriendsovertoshowherthathe'sokay.WhatshouldhavebeenanicedinnerendsinamurderandJonathandecidestohideeverythingfromRebecca.HetriestokeeplivingasusualbutquicklylosestouchwithrealityandstartsbelievingRebeccaisindanger.Hecan'ttellwhatisrealanymoreandeveryoneseemstowanttohurthislittlesister.ThefurtherhisdelusionsgothemorehestartstodoubtwhetherornottherealthreatagainstRebeccaistherestoftheworldorhimself.