Alternate history in which Britain made peace with the Nazis shortly after the start of World War II. Nine years later, the politicians who were responsible for the peace are major figures in Britain and are seeking to dominate in the upcoming elections. An important member of the party is murdered and a Jewish armband from Nazi Europe is left on the body which throws suspicion on David Kahn, the Jewish husband of Lucy, the daughter of the party leader. As the investigation proceeds, the chief inspector starts to have doubts though.
Farthing is an enjoyable but not spectacular book. The alternate history feels like minor background up until the end of the book. Early on in the book, it is fairly obvious who is responsible for the murder and the reasons behind it, so there is not much of a murder mystery aspect. It does have an interesting portrayal of how democratic institutions can start to erode, although that is hardly a theme original to this book. It was a good enough read that I will read the following two entries in the series to see how this history develops.