Obsession review: The scariest possession movie since The Exorcist

Maybe the secret is not setting out to make a possession movie at all, or at least not advertising it as such. Obsession, the assured and freaky debut feature from writer-director Curry Barker, is nominally a monkey’s-paw wish-gone-wrong story — the kind of script that might have been configured for an episode of The Twilight Zone or Tales from the Crypt — but it finds additional, chilling resonance depicting a new, non-demomic form of possession.