D.S. Grey pursues Mary Carr, the enigmatic leader of the female gang, The Forty Thieves, desperate to send her to prison and clean up the streets of London. However, the more he discovers about her, the more he realises that things are not as simple as he'd anticipated. The daughter of an international train robber, the leader of the most successful all-female gang in the history of London, beloved by many, Mary Carr slips through his grasp time and time again. But someone, somewhere, must have a grudge against her.
The real story of Mary Carr, pieced together through research of prison records, newspaper reports and archives, follow the stories of D.S. Grey, Mary Carr and the woman who unwittingly caused her downfall, Brigit McGee.
For fans of A Thousand Blows, Peaky Blinders and historical true crime lovers, as well as historical fiction fans!