I really cannot see the excitement about this film.
Now, i'm not a moron with the attention span of a sparrow, but this movie is basically a short film somehow stretched into a feature-length one. Really, nothing much happens.
Just as it starts getting interesting - at the end - I was thinking 'Oh good, finally it's picking up', and then it ended! That should've been the end of Act I.
Plus, the title kinda gives away the fact that the main character has, you guessed it, a history of violence....