When four women with nothing in common are brutally murdered, a "Mr. Nobody" is seemingly able to strike at will, undetected in a city paralyzed with fear. With precious few clues apparent at the murder scenes, only Dr Kay Scarpetta, a medical examiner with an unerring eye for detail can piece together the information. Using the latest advances in forensic science she is close to unmasking the killer. However, she faces threats from the inside, as someone is trying to sabotage her work, or worse, and do away with her altogether…

DCI Jane Tennison has been long used to fighting adversity in a man’s world – she has to be twice as thorough and effective just to survive. When she returns to investigate the murder of a hooker named Della Mornay, those qualities come to the fore when she notices a crucial detail: the victim’s shoes do not match the details on crime sheet. True to form, Tennison not only has to handle a high profile murder investigation, but she also has to deal with the naked chauvinism and jealousy of her colleagues at the station. Inevitably there is a price to pay. As she grapples with these challenges in her professional life, it takes its toll on her personal life and she risks losing the man she loves. 

Following a harrowing serial killer case DI Kate Burrows is thrown back in the deep end on a mystifying case involving the discovery of abandoned children. When one of the children dies, the case takes on a new urgency – it now becomes a race against time. With the clock ticking and her personal life in tumult, Kate has to dig deep to solve the crime. Will she prevail, or will she succumb to these almost unbearable pressures?