George Smiley is one of the most brilliantly realised characters in British fiction. Bespectacled, tubby, eternally middle-aged and deceptively ordinary, he has a mind like a steel trap and is said to possess ‘the cunning of Satan and the conscience of a virgin’. When a Russian émigré is found murdered on Hampstead Heath, Smiley is called out of retirement to exorcise some Cold War ghosts from his clandestine past.
When a woman's body is found in a North London flat clutching a bloodstained sliver of X-ray, DI Thorne discovers that the victim's mother had herself been murdered fifteen years before by the infamous serial killer Raymond Garvey. When more bodies and more fragments of X-ray are discovered, a horrifying picture emerges: a killer is targeting the children of Garvey's victims...