Started out as a truly creepy story, not dissimilar to Edgar Allen Poe's "Tell-Tale Heart" but severely stretched the story thin and loose by the end, which was predictable in a "I saw the punchline coming" way.

If your tastes include the (not so) disparate subjects of science fiction and the Marx brothers, you will enjoy this wonderfully crafted story.

Enough normalcy to be delightfully creepy.