Can Jane Tennison uncover a serial killer? February 1979. Economic chaos has led to widespread strikes across Britain. Jane Tennison, now a detective sergeant, has been posted to Peckham CID, one of London's toughest areas. As the rubbish on the streets mounts, so does the murder count - two bodies in as many days. The only link between the two victims is the location, found within a short distance of each other near Rye Lane in Peckham. Three days later another murder occurs in the same area. Headlines scream that a serial killer is loose on 'Murder Mile' and the police incompetence is hampering the hunt. Working long hours with little sleep, what Jane uncovers leaves her doubting her own mind . . .