Tinker Tailor Soldier Spy

George Smiley, a former British intelligence officer, is asked to return from retirement after evidence suggests that a Soviet agent has infiltrated the service’s senior ranks. Working in secret, he examines old operations, buried rivalries and the accounts of agents connected to the case. Smiley must determine which trusted colleague is passing information to the KGB while avoiding the attention of the organization’s leadership and the mole himself.