When the bodies of missing schoolgirls start turning up, former DCI Kate Burrows is dragged out of retirement. A new Grantley serial killer is in town and DCI Annie Carr turns to Kate for help. She welcomes the distraction from her home life with former gangster, Patrick Kelly, whose long lost son has turned up out of the blue, bringing trouble with him. It soon becomes clear the killer is on their doorstep and as the body count grows, Kate and Annie face a race against the clock. But they have no real leads ... and there's more to these murders than meets the eye. Can Kate take the killer down before another schoolgirl dies?