Centred on the cases of P. D. James' gentleman detective Adam Dalgliesh. In addition to his career as a policeman, Dalgliesh is also a published poet and an intensely private man.

When Dr. Edwin Lorrimer, a forensic scientist working at a private laboratory is found killed, Detective Superintendent Adam Dalgliesh is sent to investigate. Dalgliesh had been in the area a few months previously investigating the murder of a young woman found in an abandoned car. There are several suspects: Lorrimer's subordinate, Clifford Bradley, who despises him; the new head of the laboratory, Maxim Howarth, who is jealous of his sister's relationship with him; a colleague, Paul Middlemass, who had a fight with Lorrimer. There is also a gruff and likely unethical policeman who was on the grounds of the laboratory at the time of the killing and a local pathologist who is raising his two young children after his wife leaves him for another man. When one of the suspects is also murdered, Dalgliesh learns a key piece of information.

Frank takes over Coleman and Sons, Diamond Merchants, when his father dies, and his ruthless business practices make enemies of his friends and family. His wife Margaret is tempted to leave him when she falls in love with his buyer, Bernard. Frank, racked with guilt at having cheated a concentration-camp survivor out of a fortune, believes that decision has brought a curse upon his life.