Leamas's mission secretly protects Mundt
Alec Leamas, after his Berlin network is destroyed, fakes a drunken decline and 'defects' to East Germany to feed evidence that Hans-Dieter Mundt, the ruthless head of East German counterintelligence, is a British agent; Mundt's Jewish deputy Fiedler builds the case and brings him before a tribunal. The case collapses when Liz Gold, Leamas's naïve Communist girlfriend who was brought to East Germany as a witness, reveals that the Circus paid off Leamas's debts, exposing the frame. Leamas then learns the operation was built to fail: Mundt really is a British asset, and the true aim was to discredit and destroy Fiedler, who had grown suspicious of him. At the Berlin Wall, Liz is shot, and Leamas climbs back down to die beside her rather than escape.
