TV producer and presenter William G Stewart investigates the allegation that journalist and prominent MP Tom Driberg, who died in 1976, was a KGB spy. Stewart was Driberg's secretary in the 1960s and goes in search of the man he thought he knew well, talking to some of his surviving friends and colleagues and to experts in the murky world of spying. It is a journey that encompasses public schools, Oxford, luxurious country houses, the back streets of the East End of London, left-wing labour politics and the seedy bohemia of postwar Britain. Among others Evelyn Waugh, John Betjeman, Edith Sitwell, Guy Burgess and Nye Bevan all feature in Tom Driberg's incredible life, a colourful one that included astonishing sexual risk-taking, but above all Stewart wants to discover if his former boss betrayed his friends and his country.