Havers gets back to work after being shot and is assigned to a case in rural Suffolk, where a young woman has been murdered with a shot gun. Lynley is worried about the effect the case will have on Havers. Then a photograph of the murdered woman arguing with a man is sent to the police, and a mysterious word is painted on the wall of the crime scene - it seems as if someone is trying to give the team some clues. As a result, they uncover a dark secret that villagers have kept quiet for years. In a final confrontation, Havers has to face down her fear of being back in the line of fire.

Lynley and Havers investigate the killing of a porter at the House of Lords. At first it looks as if the murder may be connected to the dead man's gambling debts, but then a senior clerk is also murdered, with evidence of a conspiracy involving stolen test reports on a new missile system. Havers traces the missing documents, but then she finds she and Lynley are both being followed...

The frozen body of a man is found on a meat truck in London's Smithfield Market, and on the body are a forged British passport and an Arabic manuscript on a page of vellum. The dead man appears to be an illegal immigrant - but was his death accidental? The manuscript turns out to be a page of an ancient Koran, hugely valuable. And Lynley finds himself locking horns with Inspector Brennan, of the Metropolitan Police's immigration department...