It is called la NOIRE for a reason
look i dont know why they put that e on the end, but the ending was FANTASTIC
Noir films typically have bad endings, or least not happy endings
they usually have an antihero (phelps) in the lead who uncovers curruption but ultimately allows it to continue to better himself (la confidential)
everything does not get wrapped up in a nice little package,
Its why films of the 40's and 50's are tenfold better than the *beep* cliche crap hollywood regurgitates these days