Defectors and moles.
Len Deighton's Game, Set Match trilogy is of a similar style to John Le Carre's books about George Smiley.
A quiet, unassuming, unheroic and unprepossessing and sometimes overlooked spy is wasted in obscurity until someone realises he is the right man for the job to help out in a defection.
Life soon gets too adventurous for Bernard Samson when he realises there are problems in his own office with enemy spies.
Good, intelligent espionage fiction is to be found here.
4 out of 5