"The Telltale Heart" by Edgar Allan Poe is the epitome of creepy. (We know we could say that about all of EAP's stories, but it's especially true for this one.) In this short story, a nameless man kills his neighbor and buries his heart under his floorboards because the neighbor's eye annoys him. Now that the deed is done, he's telling us the story to prove he's not crazy. Good luck with that one, buddy.