This story, set during the cold war, is about a British spy, Leamas, who is controlling the spy actions against the east block (or “zone”) from West-Berlin. After he lost one agent after the other to his opponent Mundt of the counter-espionage of the “party”, he returns back to London where he and Control (a man of high rank in the British espionage network) come up with a plot against Mundt. Their Plan was to get Leamas to “betray” London and sell information to his opponent which indirectly accused Mundt of being a London agent ....