Edward Wilson

London, 1956. Spymaster Henry Bone is convinced that 'Butterfly' is the Holy Grail of Cold War Intelligence. However, Butterfly is an aristocratic pervert whose political tastes are as ugly as his sexual preferences. Worst of all, he has the ability to identify traitors - and every serving British spy who helped them.

In London at the height of the Cold War, Kit Fournier is ostensibly a senior diplomat at the U.S. Embassy in Grosvenor Square. But he is actually CIA bureau chief in London—a spy operating under diplomatic cover. He plies his cynical trade on the spy-infested streets where suspicion turns enemies into friends and friends into enemies.

October, 1962. If the Cuban gamble goes wrong and war breaks out, Britain will no longer exist. London dispatches a secret envoy to defuse the confrontation.