"I know you know what I did. And I know you want to find me. I'm not done with you, either." It's only been months since the Amateurs solved the mystery of who killed Aerin Kelly's sister Helena - but they now have a new case. Social media star Chelsea Dawson has vanished from a party without a trace, and Seneca realises that the petite, blonde young woman is a dead ringer for Aerin's sister. Will the Amateurs take up the invitation from none other than their prime suspect to go to the very place of Chelsea's disappearance? Do they have it in them to solve another crime and to avenge Helena's death? A twisted path is opening up before Seneca and her friends - one crafted by a brilliant killer. The question is: will the Amateurs play his game?