Can you crack the code?Detective Mary Hume is on the trail of a vicious serial killer. A killer who leaves a baffling code carved into the skin of his victims.The first victim, a young man, lies spreadeagled in his stylish Soho flat. Carved deep into his hairless chest - while he was still alive - are the numbers 1-4-3.The second victim is a vicar - murdered and mutilated in his own church, his body posed kneeling in the front pew. Etched into his torso are more cryptic numbers.Detective Inspector Mary Hume knows that to crack the case, she must crack the code. And to do that, she needs the help of maverick ex-police officer Raine, who can reach places - and people - that Mary can't.Now the killer has their next victim in sight . . .