Oh, this one is good. Set in a future not too far from hours where aliens monsters will attack and eat you if you make the smallest of noises. I assume they are aliens because the film does not care to tell us and I do not much care. What I do care about are the high terrible stakes for the family we are tagging along with, those stakes are set and made clear for us in the first 15 minutes. With most of the interactions done without words this movie grips us with its intense well-designed sequences, smart believable characters and tremendous performances by all involved especially Emily Blunt. It is not without its flaws and I do not buy some of the story conclusions but it works so well as a tight smart thriller.