A Killing in November by Simon Mason (PB)

Ryan Wilkins grew up on a trailer park, a member of what many people would call the criminal classes. As a young Detective Inspector, he's lost none of his disgust with privileged elites - or his objectionable manners. But he notices things; they stick to his eyes. His professional partner, DI Ray Wilkins, of affluent Nigerian-London heritage, is an impeccably groomed, smooth-talking graduate of Balliol College, Oxford. You wouldn't think they would get on. They don't.