This is a bit of a sinister gangster / love story. I will be honest in saying I did not expect the sinister gangster side of the film. Thusly I did not think that the film was very focused. It was neither a gangster film nor a romance.
The idea is story about a Las Vegas 'cooler' who dampers people luck in the casino. It is a story about his last seven days in debt with the local mob and his break for freedom.
I would say that the film is watchable as long as you have low expectations and don't expect to be overly entertained.