The Circus has already suffered a bad defeat, and the result was
two bullets in a man's back. But a bigger threat still exists. And
the legendary George Smiley is recruited to root out a high-level
mole of thirty years' standing - though to find him means spying on
the spies. Tinker Tailor Soldier Spy is brilliant and ceaselessly
compelling, pitting Smiley against his Cold War rival, Karla, in
one of the greatest struggles in all fiction.