This is a thinking person’s movie. You’ll need to pay attention consistently throughout. Much like a good novel that you can immerse yourself in. Norton was excellent portraying a second rate detective with Tourette’s syndrome. A role seemingly difficult to pull off. He played his part well. Although, I thought the characters in the movie were a little too forgiving about his Tourette’s. I especially like the jazz music that pervades the movie and contributes to it’s film noir ambience. The scene where Norton imitates Wynton Marsalis trumpet riffs while in a drunken dream like state was enjoyable, and for myself, a jazz musician, entertaining. If you enjoy puzzling plots, you will enjoy this movie. The puzzle gets completed at the finale.