I was recently lucky enough to be asked to contribute to Eva Dolan’s excellent criminal classics season on her equally excellent Loitering with Intent blog. It covers literary classics that also double as really rather excellent crime novels too.
My contribution is here – it’s The Outsider by Albert Camus. And when you’ve finished reading mine I suggest you read the rest of them, because you’ll be missing out on some classics otherwise (a lot of far better writers than me can be found giving you the heads up on some brilliant and inspiring novels).