Odd, sad, wistful, weirdly hopeful, and a solid mystery otherwise. Positives include a gripping and well-realized environment (The world is ending due to an asteroid collision in six months, why do anything?) and an enjoyable hero who's still intent on solving a crime and bringing the perp to justice even if he won't even be able to get a court case before the end of the world. Downsides are an overall depressing feel (which may not be a downside for all, YMMV) and fairly interchangeable characters who I honestly had a hard time telling apart. Much more original and unique than the typical police detective crime novel, though.