After missing a bank heist, a young gunman has to do battle with vengeful gangsters and his own Obsessive Compulsive Disorder.
I don’t understand “missing” – he didn’t show up or things went wrong or what? I suggest to be more specific about this.
Maybe you can tell in onother way what is the main character’s disorder, which is, in my opinion, the most original things in this concept. What is his obsession, his compulsion? This is where the movie become interesting (to me).