This film is an acute observation on human paranoia, at every turn merely suggestive of a character's (mal)intent and move instead of conspicuously put forth. The surreal billow in which it lives offers you a chance to bathe in the mystery it's suggesting--which is why I can't make my mind up on the conspicuous ending. Does it resolve or hurt everything the film's depicted up to that point? I guess that contemplation in itself makes it a watch worthy of your time. I highly recommend it.