When single mum Joanna shares a rumour at the school gates – desperate to ingratiate herself with the clique of mothers at her son’s new school – there is no going back. Rumour has it that a notorious child killer is living under a new identity, in their sleepy little town of Flinstead-on-Sea. Sally McGowan was just ten when she stabbed little Robbie Harris to death over 47 years ago – no photos of her exist since her release as a young woman. So who is the supposedly reformed killer who now lives amongst them? How dangerous can one rumour become? And how far will Joanna go to protect her loved ones from harm, when she realises what it is she’s unleashed?