This is a fascinating spy story from WW II. It's not quite as good as Macintyre's Operation Mincemeat book. But it has some very clever deceptions, cover ups, sabotage and other exploits of Eddie Chapman (alias Fritz, alias Zigzag).
Eddie was a British citizen, rough Soho neighborhood criminal and safecracker. His capture and imprisonment on the British isle of Jersey coincided with the Nazi takeover of Jersey. Not wanting to spend his time time a Nazi jail he offered his explosives and criminal expertise to the Nazis. They took him up on it and after training, sent him to Britian to commit sabotage. He was promptly captured.
Not wanting to spend his time in a British jail, he offered his spy services to MI5. He had just been trained as a Nazi spy and had loads of information. The Brits took him up on the offer. He was then trained in British spy techniques (while regularly sending messages back to his German handlers).
The whole story is a romp through the double agent spy system during WW II. The fate of Eddie/Fritz/Zigzag is for the reader to discover. I highly recommend this book.