It reminded me a lot of Taxi Driver and Deliverance and was really promising, but it felt like it ran out of steam. There was too much filler, too much following grumpy beardy cliche around with nothing going on, and then the ending waited too long and then was too over the top. They also really needed to tone down the one sidedness of it all. But overall it was decent. It could have been good with a few tweaks.