First Two Thirds of This Movie Deseves 10 Stars, Last Third Hurts It

Rating: 9/10 (7 July 2017)

This review definitely has spoilers!
The premise for this movie is amazing. Some mysterious entity that will always come after you unless you pass it on to others. And the entity can take the form of people you know. The fact that you don't really know what this entity is, really adds to the horror in my opinion. The unknown is the most scary to me.
Ambiguity is a big theme in this movie, which is interesting in and of it self. It's never clear what the time period is. Elements of several different decades are all mixed together.
The problem with this movie however, is the writer doesn't know what to do with the premise. The protagonists start out using trial and error methods to avoid and defeat "it." Running away, then shooting it. But then, after finding out that attacking it physically doesn't work, they keep trying to attack it physically again, even though that method was already shown to not work. That's the climax of this movie. The protagonists trying to do something that was already proved to not work. And it obviously fails, as was previously established earlier in the film.