An au pair disappears in the heart of suburbia. When her body shows up, all eyes are on the only witness to her abduction, a two-year-old child.

Detective and expert witness interviewer Laura Shaw knows she is needed. But in the aftermath of a case that nearly broke her, Laura questions if she can continue to do police work. Her partner, Detective Niamh Darmody, is on the case, but without Laura to rely on, she's struggling too.

When the discovery of a second body blows all their theories out of the water, Laura and Niamh must accept that the killer is poised to strike again.

All they know is that he is tantalisingly close, hidden in plain sight.
But they won't see him - not until he wants them to . . .