8.5/10
No spoilers:
Not an easy premise to pull off, but damn did they do it. The cast just killed it. Krasinski was much better than I expected, Blunt was amazing, and even the kids were good.
The suspense meter is set at 11 early on, and doesn't drop much throughout the movie. This isn't your typical "horror" film. It's more like a slow paced suspense thriller that just places you in each scene.
This movie will definitely be nitpicked. They don't spell out everything for you, and I know some people hate that. I even had a few questions myself, but them being unanswered didn't really hurt the movie for me.
There's a couple of down/slow moments, but you kind of need the break tbh. What really keeps this movie from being a straight up 10/10 (or very close to it) is the last 5 minutes. Not a terrible ending, but it just felt off to me.
Fair warning: If you hate subtitles this movie isn't for you.