Close to a motorway service station, the body of a young woman is discovered. She appears to have no family, no friends, no one to identify her. DI Anna Travis is brought onto the team of investigators by DCS James Langton, who already suspects that this recent case could be linked to two unsolved murders. As more evidence is discovered the team realise that they are contending with a triple murder investigation – and no suspect.But then a murderer known to Anna makes contact from prison. Cameron Welsh insists that he can help track down their killer, but he will only divulge his secrets to Anna herself. Does he really have an insight into another killer’s mind, or is he merely intent on getting into hers?Welsh’s obsession with Travis will have disastrous consequences for Anna, who finds herself staring into the face of a desperate personal tragedy…