This was essentially a movie length version of a Criminal Minds episode. It wasn't bad. It wasn't great. If you like procedural tv shows like Criminal Minds or SVU - then I have no doubt that you'll like the movie. There really isn't much else to say other than that I could have done without the weird close up in tight spaces camera work. Did they think that would make it more realistic or something? Ultimately - just got annoying.
I would again recommend this movie to anyone that likes those procedural type tv shows. Based on this being exactly that - you definitely get what is advertised.