Bond is not the only agent out there. An urgent signal is received at the London headquarters of the ultra-secret government department known as Sector Three. Klemperer, their agent-in-place in Tunisia, is sheltering a North Korean diplomat who wishes to defect to the West, bringing with him vital intelligence concerning foreign sleeper agents operating in Britain. The Sector sends out their operative, code-named Robert Lane, who arrives at an hotel specified by Klemperer, to await contact. When he receives no message, Lane's impatience grows, then a guest falls to his death from a high window. Lane sees the body and realizes that the dead man's appearance closely matches his own. Shortly afterward, a series of attempts on his life begins - Lane has become a target for an unknown enemy, for reasons that he cannot explain. When Klemperer finally makes contact Lane meets him, expecting death at any moment from a ruthless adversary who is becoming increasingly desperate.