The beginning of the movie was really great: it did not mess around for too long and it went almost straight to the point, which in this case worked really well in my opinion. The idea of the monster is good, and it starts off great, but then for me it is just a mess: the film cannot figure out what the monster can or can not do which is really frustrating sometimes. Sandra Bullock is amazing in her role, but her companion Tom (as a character) is just pure creepyness and cringy behaviour all aroud. Long story short: the first part was ok, then the plot developed lazily and went basically nowhere in the end, and the climax, as I mentioned the thing about not being really clear about the abilities of the monster, was dull. Watch it for yourself, because it has some cool ideas, but dont get really disappointed at the end