A Fallen Angel. A Devil on the Loose. When a young girl is discovered dead on an isolated Irish country road, it seems at first glance to be a simple hit and run. Then the cops see the tattoo on her back - a pair of beautifully wrought angel wings that lend the victim a sense of ethereal innocence. Forensic investigator Reilly Steel is soon on the scene and her highly tuned sixth sense tells her there is more to this case than a straightforward murder. But with almost zero evidence and no way to trace the girl's origin, Reilly and the police are at a loss. Then the angel tattoo is traced to other children - both dead and alive - who are similarly marked, and Reilly starts to suspect they have all been abducted by the same person. But why? And will Reilly get to the bottom of the mystery and uncover what links these children together before tragedy strikes again?