based on novel or book,staircase,childhood trauma,violence against women,half-brother,stepson,mute,serial killer,killer,old dark house,gothic,spiral staircase,speech impediment,bedridden,stormy night,pair of evil eyes,physical disability,proto-slasher,speech impaired,spree killer,mute servant,traumatized woman,imperfection,horror noir,lost voice,target the handicapped