Necromentia

Travis cares for his mentally disabled younger brother and works as a torturer for hire. He is also addicted to heroin; it is ketamine, however, that catapults him into the realm of a black-eyed demon called Morbius. Morbius informs Travis that his brother has been taken by another demonic troublemaker called Mister Skinny. Mister Skinny appears as a diaper-wearing fat caucasian butcher in a pig mask who first entices the boy to eviscerate his slumbering baby-sitter. If Travis helps Morbius exact vengeance then Morbius will allegedly help Travis find his dead brother.