简介：Twoestrangedsiblingsinherittheirgrandmother'shomeafterherdeath,butastheyworktoclearouttheoldhome,theyfindthemselvestrappedinsidebehindadoorwitheightdeadboltlocks...andtheworldoutsidethehomeisplungedintounnaturaldarkness.Thehousedescendsfurtherandfurtherintoasurrealnightmareasthesiblingsdesperatelysearchforthekeysthatwillopenthewaybacktoreality,buttheirmutualangeranddistrustthreatenstodoomthemtoeternalimprisonmentinthishousethatisnotmerelyahouse,butatrapforhumansouls.…