I was totally surprised at how great this film.You could feel your paranoia rise as the film went on and as you gradually learned the details of the real situation.

The performances transcend the film's tropes, grounding it in characters that feel more complete than this subgenre often produces.

Exactly the movie you think it is, but not the movie you want it to be.

I think this is a new genre that they're all sort of working their way through it and haven't got all the kinks worked out yet but it's a genre that works for me.