DC Anna Travis (Kelly Reilly) has been assigned to her first murder case. Under the watchful eye of DCI James Langton (Ciaran Hindis), she joins a team investigating a series of brutal and shocking murders. They started eight years ago, and the body count - all prostitutes and drug users - was up to six, but now a seventh body has been found. This time the victim is a beautiful, young student, with the murderer no less ugly in his slaughter. Is every victim innocent, or are some more innocent than others? Determined to prove herself, Anna uncovers a vital piece of information linking one man to all the killings, a much-loved actor on the brink of stardom. He seems above suspicion and his smouldering good looks attract even Travis - but in getting closer to the truth, is she getting too close to a killer?