Almost everyone has a story about a neighbor from hell, and if you don’t, you’re either very lucky or… it was you; you were the neighbor from hell. Not literally of course. Playing loud music until late at night or not cleaning up after your dog might be incredibly annoying but they don’t make a shitty neighbor a “demon” or anything like that. Harry would know because he actually lived next door to one of history’s greatest monsters: Jeffrey Dahmer, who raped, mutilated, killed, and ate (though not always in that order) at least 17 people between 1978 and 1991. This is what Harry has learned from living next to a literal neighbor from hell.