George Smiley has become acting chief of the Circus, but the credibility of the British Secret Service has been shattered. Smiley's adversary is Karla, the Soviet officer who masterminded the Circus's ruin. His battleground is Hong Kong and his choice of weapons is the Honourable Gerald Westerby.

A brand new Radio 4 full cast dramatisation of the classic George Smiley novel by John le Carre, starring Simon Russell Beale. This is the sixth in the major new series of all eight George Smiley spy thrillers on radio.