Just saw it, and for me it was a mixed bag. The concept is executed brilliantly and the tension at times is off the charts. I do think it would have been better with no ambient music in order to raise the alienation of the situation but that's just me. However there were some bad parts to it. A lot of the set up for the climax is very contrived and it gets a bit hard to buy into. On top of that the creatures seem less like biological monsters and more like ghosts or spirits given the fact they seem to be able to come from nowhere and the slightest sound sets them off no matter how far away they are. Also the solution for what they're weak to is made so obvious long before the characters can do anything about the final act of the movie is spent just waiting for them to play catch up with the audience which is never a good way to build an ending. The last shot of the film to is so out of place that I actually started laughing at how silly it was. So in the end a solid 2/3rds of a film brought down by a few pacing issues and a lackluster climax. I think it might have done better as a short film or like a Black Mirror episode.
