Farthing
Like most of Jo Walton's books, this was a slow burn that grew on me as I read it. It gained depth as it went, until it finished as an entirely different sort of story than when it started. Farthing (and it's two sequels which I may or may not read at some point) takes place in an alternate version of 1949, just outside London. In this world, England has reached a truce with Hitler and let him have the continent. America never entered the war, becoming increasingly isolationist. And fascism is on the rise in all sorts of insidious little ways. Lucy and her husband are spending the weekend with her parents at the estate, something that has been increasingly rare since Lucy went against their wishes and married a Jewish man. When a man is murdered, it quickly becomes apparent that the real murderer is trying to frame Lucy's husband, David. And politics being what they are, there's not much anyone can do about it. This starts a cozy murder mystery, with the point of...