When a seventeen-year-old Moldovan boy is found dead on Hampstead Heath, the case falls to DCI Karen Shields and her overstretched Homicide & Serious Crime team.

Karen knows she needs a result. What she doesn't know is that her new case is tied to a much larger web of gang warfare and organised crime which infiltrates almost every aspect of London society.

Several hundred miles away In Cornwall, DI Trevor Cordon is stirred from his day-to-day duties by another tragic London fatality.

Travelling to the capital, Cordon becomes entangled in a lethally complex situation of his own. A situation much closer to Karen's case than either of them can imagine ...