Lack of good storyline.

Don't listen to the Hype. It's awful

After playing with our expectations, this turns out to be a very different sort of film.

Just intense enough to provide a much-needed diversion, just lightweight enough to make you forget about it soon after it’s over. It’s not exactly “good,” per se, but it does what it sets out to do in terms of putting us on edge, which makes it … successful?