Alec Leamas, a British spy run ragged in Berlin, is brought back to London and offered one last mission: pose as a defector to bring down an East German intelligence chief. The mission is not what it appears to be. Le Carré's third novel made him famous and established the moral framework of serious spy fiction.
George Smiley, retired from British intelligence, is brought back to investigate a Soviet mole at the top of the Circus — the MI6 analogue. The investigation requires him to reconstruct events across a decade and penetrate the loyalties of men he has known his whole career. The first Smiley novel of the Karla trilogy.