This book is about five very different characters for all walks of life, who became double agents i. World War 2. They participated in espionage at great peril, and were successful in convincing the Germans that the D Day invasion would happen in a different place, other than Normandy. This book was difficult to read because each double agent had handlers on both sides, and more than one code name, as well as various other sub agents and characters. I had some trouble keeping track of all the characters involved, that said, this book is worth reading, especially for history buffs!