It's a decent film which provides enough tension to keep you interested. Personally, I would have preferred more depth and back story. I don't normally say this, but the film could have benefited from being an extra 20-30 minutes longer.
There are whispers of interesting sub-plots which don't ever get off the ground. This film in part, has a bit of an identity crisis as it doesn't know whether it is a thriller, drama or even an art house film at times. It results in a memorable yet underwhelming film.
I still enjoyed watching this film but am ultimately left disappointed with the wasted potential this great story could have been.