Tinker Tailor Soldier Spy

In October 1973, "Control", head of British intelligence (referred to as "The Circus"), sends agent Jim Prideaux to Budapest to meet a Hungarian Army general wishing to defect. The meeting is a trap, and Prideaux is shot by Russian-employed agents attempting to capture him. Amidst the international incident that follows, Control and his right-hand man George Smiley are forced into retirement and Control dies of illness shortly afterward. Smiley's wife, Ann, is having an affair with his colleague Bill Haydon and has moved out.