Englishman Harold Adrian Russell Philby, nicknamed Kim, slips onto the Russian freighter Domatova as it quietly sails out of the Beirut harbour. A spy for the Soviet Union, he flees the Lebanese capital with just the clothes on his back and uncertainty over his fate in Moscow. Will he be welcomed as a senior Soviet intelligence officer? Will the Great Game he's so keen on playing have a third act? Or will the Heart of Darkness have a more sinister purpose? Impossible to put down, Young Philby paints a vivid picture about one of recent history's most fascinating and subtle spies.