Things can't get much worse for Detective Jane Tennison. Unceremoniously kicked off the adrenaline-fuelled Flying Squad, she now plies her trade in Gerald Road, a small and sleepy police station in the heart of London's affluent Knightsbridge. With only petty crime to sink her teeth into, Tennison can feel her career slowly flatlining. That is until the discovery of the most brutal murder Jane has ever seen: Charlie Foxley has been found viciously beaten to death with a cricket bat - his body dismembered and disembowelled.

In a city as old as London, the discovery is hardly surprising. But when scratch marks are found on the inside of the coffin lid, Detective Jane Tennison believes she has unearthed a mystery far darker than any she's investigated before. However, not everyone agrees. Tennison's superiors dismiss it as a historic cold case and the Church seems desperate to conceal the facts from the investigation. It's clear that someone is hiding the truth and perhaps even the killer. Tennison must pray she can find both - before they are buried forever.

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.

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....

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.