Guy Burgess and Donald Maclean were British diplomats who disappeared in 1951 and surfaced in Moscow in 1956. There was speculation that Harold “Kim” Philby, head of the Soviet section of the British Secret Intelligence Service, was the “third man” who alerted them before they could be arrested for espionage. "A Different Loyalty," through the eyes of Philby’s wife (Stone), depicts the events surrounding Philby’s own defection. Formerly the wife of his best friend, Philby seduced and then married Eleanor. Then one night her life is shattered when Kim fails to turn up to a drinks party in Beirut and has seemingly vanished from the face of the earth. Later when he makes contact from Moscow, and still desperately in love with him, she defies threats from the US government and risks all to go and visit him. He may now be a KGB general, but, to Eleanor, he has become a diminished man. "A Different Loyalty" is a gripping, powerful drama, part thriller, part love story, part impossible moral dilemma.