As the Cold War begins, two unlikely friends commence a dogged hunt that takes them into the very heart of Russia’s covert war against America. In this true story, the secrets they will uncover at the end of their daring and tenacious quest not only shock the nation but also change the course of history.

This is the suspenseful and news-making account of Bob Lamphere, a hard-charging, fun-loving FBI agent, and Meredith Gardner, a brilliant but difficult code breaker, who team up to break the “unbreakable” Soviet codes only to discover the existence of Operation Enormoz—the Russian plot to steal America’s atomic secrets. Energized by this startling knowledge, they embark on a secret mission to track down the Soviet agents before the spies can steal the nation’s newest superweapon, the hydrogen bomb. Yet all the while, Moscow Center is working against them, ingeniously deploying their agents in a determined effort to make off with America’s technological and military secrets.

Based on previously classified documents, personal notebooks, letters, and revealing interviews, In the Enemy’s House takes readers on a journey from Arlington Hall, the top secret code-breaking headquarters in Virginia, to the scientific compound at Los Alamos, and on to the sidewalks of New York’s Lower East Side, the foggy streets of London, and the corridors of secret power in Moscow. It is a trail that ends hauntingly in the electric chair at Sing Sing prison, where Julius and Ethel Rosenberg meet their end.