I don't understand why this movie has been so reviled by critics and IMDb users. The obsession and descent into darkness of the nice girl Claire, depicted by Charlotte Ayanna without any annoying mannerisms, are so realistic they made me ache. Stories like hers are very common, although not everybody goes to such extremes. Adrien Brody is an excellent actor and gives an interesting performance, but I find him miscast: he doesn't really exude a life of crime out of every pore. The script doesn't actually explain how Jack Grace became the way he is. The sketchy details about his background he provides Claire could be a figment of his overactive imagination. So all we can do is watch Claire sink lower and lower, but eventually redeem herself. And is Jack 'cured' after two year in jail and a close call? Probably not.