Twenty-six-year-old Cat Kinsella overcame a troubled childhood to become a detective constable with the Metropolitan Police Force, but she's never been able to banish the ghosts of her past or reconcile with her estranged father. Work provides a refuge from her family dysfunction, but she relies on a caustic wit to hide her vulnerability from her colleagues. When a mysterious phone call links a recent strangling victim to Maryanne Doyle, a teenage girl who went missing in Ireland eighteen years earlier, the news is discomfiting for Cat. Though she was only a child when her family met Maryanne on a family vacation, right before she vanished, Cat knew that her charming but dissolute father wasn't telling the truth when he denied knowing anything about the girl's disappearance. Did he do something to Maryanne all those years ago? Could he have something to do with her current case? Determined to close the two cases, Cat rushes headlong into the investigation, crossing ethical lines and trampling professional codes. But the deeper she digs, the darker the secrets she may uncover.