Exploding the myths that surround Anthony Blunt this book reveals that he was not the fourth man but the first: the "managing director" of a network of spies that penetrated the very highest echelons of the American as well as the British establishments. By using newly discovered and top-secret British and American reports and cross-checking them with more than 300 interviews with Blunt's contemporaries John Costello presents a damning case against counter-intelligence.