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.

if their story seems completely bonkers, almost like a feverish work of fiction, you ain't heard nothing yet.

A lot of perfectly good film show their cards early, establish a unique premise and let the audience explore a topic at a leisurely pace, without much in terms of surprise. this film is not one of those films.

There's a more than satisfactory amount of boom-boom in the movie's trim running time.