The Crow Girl begins with the gruesome discovery of a teenage boy's body discarded in plain sight. Determined to find who is responsible, DCI Jeanette Kilburn joins forces with psychotherapist Sophia Craven to hunt the killer despite opposition from her superiors including confidant DI Lou Stanley.

The investigation takes them into a dangerous world of historic abuse and murder. Together they uncover a chain of shocking events involving the disappearance of children that have gone overlooked for decades, as well as evidence of police corruption.  As the body count rises and the two women are dragged into the depths of the murders, an intimacy starts to form between them, and so begins a complex, twisted love story. All the while, the killer is inching ever closer to home.