TWO BEST FRIENDS. ONE TERRIBLE CRIME. A KILLER ON THE LOOSE...

When sixteen-year-old Erin Ellis is attacked, she dies in the arms of her best friend. Molly is the surviving girl but easily could have been the victim - all signs point to a random mugging gone wrong.

With inconclusive evidence, DS Grace Allendale must dig deep within the tight-knit Stoke community for leads. And she soon finds that someone had a motive to kill Erin.

As the investigation unfolds, Grace is reminded of a horrifying case from earlier in her career. Is the past coming back to haunt her? And can she push through her fear to catch Erin's killer before it's too late?