The short version is that it's a queasy morality fable about a fallen woman who, due to the love of a faultless man, ultimately discovers the grace of God and mends her wicked ways. The longer version is that this earnest, tacky, largely offensive trifle is – thanks to a handful of unexpectedly resonant performances – a lot less icky than it should have been. Damned actors. The good ones can make almost anything bearable.