Rookie detective Anna Travis has been assigned to her first murder case - a series of killings that has shocked even the most hardened on the force. Over the past eight years there have been six victims - all women from similar backgrounds, all killed in an identical way. Then a seventh body is found, but this one doesn't fit the pattern.

Jack Warr is a young DC with the Metropolitan Police. Charming but aimless, Jack can't seem to find his place in the world - until he's drawn into an investigation that turns his life upside down. In the aftermath of a fire at a derelict cottage, a badly charred body is discovered, along with the burnt remnants of millions of stolen, untraceable bank notes - the hidden legacy of Dolly Rawlins and her gang of Widows. Jack's assignment to the case coincides with an investigation into his own past.

Lieutenant Lorraine Page once had everything - a devoted husband, two beautiful daughters and an impressive career with the Homicide Squad. It's impossible to believe that she could be thrown out of the police force and end up on Skid Row. Without Lorraine, her colleagues struggle on, as the hunt for a nightmare serial killer spirals into an all-out search for a missing witness: a victim who escaped. But Lorraine Page is about to be brought right back into that world again....

Wealthy racing yard owner Edward de Jersey has spent the last few years of his life reaping the rewards of his criminal mastermind past and spending his free time priming his star horse, Royal Flush, for a Derby win. Having successfully pulled off some of the most lucrative heists in history as 'The Colonel', at the height of his activity, he was one of the most prolific criminals of his time. But, when his financial advisor invests his fortune in an internet company that crashes quickly after, he is left with no choice but to return to his old ways.

Barfield Prison is one of the toughest high-security prisons in England, housing the country's most dangerous criminals. And when an inmate is found dead in his cell, a riot breaks out, forcing the authorities to investigate a potential murder. Despite being Barfield's youngest ever female Governor, Helen Hewitt is seen as the best woman for the job. But with a prison full of corrupt and suspicious officers, restless inmates and a broken system, Helen has her work cut out - and no allies to help her....