Things have never looked bleaker. Framed for the murder of her high school nemesis turned organised crime boss Amelia Murphy, Becky Hidgens is in prison, surrounded by hardened criminals who would love to see her dead, and is facing a life sentence for a crime she didn't commit. With Amelia's associates in the police force watching their every move, and Lisa Kleinman suddenly dropping Becky's case, the Costa Crew are powerless to help her. Somehow, they must uncover the mystery behind Amelia's final plan, bring down her associates and clear Becky's name before it's too late and anyone else gets hurt. In the final installment of the Costa Crew series, all cards are laid on the table as Becky, Paul, Hannah, Ted and Charlotte must face the demons of their past one final time. Whatever happens, it all ends here.

It's always an inconvenience when your old high school rival tries to kill you, as Becky Hidgens can confirm. But things are picking up - Amelia Murphy's in prison, and she's speaking to her friends and family again. Maybe she can finally have a normal life? If only it were that simple. Becky might be ready for normality, but the world isn't ready to give it to her. When tragedy strikes, it's up to the Costa Crew to solve the mystery before it's too late and the forces of darkness close in. All that while Ted Green deals with an arrogant superior, Charlotte Monroe struggles with the knowledge that her job is a dangerous one and she has two children to look after, Hannah Perkins adjusts to life in the spotlight after years of working in the shadows, and Paul Houston's faith in justice is challenged as he begins to look at the police force from a new angle. How hard can it be?

It's been 12 years since the events of school prom - or not, in the case of the Costa Crew. But Becky Hidgens has moved on: she's got her dream job, the phone numbers of some of the highest officials in the country - and she hasn't spoken to her best friend in two years. When fate throws the old friends back together, it doesn't take them long to realise that old habits die hard - but so do old grudges.