Billy Boyle is a young Boston cop whose family pulls strings with their Congressman and "Uncle Ike" (Eisenhower) to get a cushy officer position rather than an infantry position in WW2. Ike wants to use him as a special investigator, and the first case is to root out a man who is part of the Norwegian government in exile and also a Nazi spy. While on the grounds of Beardsley Hall, where the Norwegian government-in-exile is located, one of two men competing for King Haakon's ear appears to be murdered. Boyle's search for the spy is now also a search for a murderer.

I found the story enjoyable, especially the early parts of the book where Boyle lays out how he's not really a top-notch detective. Rather he's barely made the rank when he was inducted. And the initial investigation stuff is great too, as it involves things like following money, interviewing staff, and searching rooms. Later in the story the investigation turns more to speculative means, and I don't enjoy that as much. However, the story throughout also includes a lot of the developing friendship between Boyle, British Second Officer Daphne Seaton, and Polish officer-in-exile Piotr "Kaz" Kazimierz. That made up for the investigation veering into methods I dislike in my fiction.

Lastly, the ending is pretty unbelievable, and doesn't hold together on its own terms. I didn't really mind that much, but if you like your mysteries to make sense all the way to the end, this is not the book for you.