On a freezing morning four drunken students stumble upon the body of a woman in the snow. Rosie has been raped, stabbed and left for dead in a cemetery. The only suspects are the four young men now stained with her blood. Twenty-five years later the police mount a cold-case review of Rosie’s unsolved murder, and the four are still suspects. But when two of them die in suspicious circumstances, it seems that someone is pursuing their own brand of justice....

It's 1984. The miners' strike is dividing the country. In a struggling coal-mining town, the miners and their families are living at the edge of their resources. On the 14th of December, five miners break ranks to travel to Nottingham and work. For those who stay behind, this is an unforgivable betrayal. Twenty-three years later, a young woman is asking the police to trace her missing father. Miner Mick Prentice vanished, never to be seen again.

Karen Pirie is the newly appointed Deputy Inspector of the Cold Case Unit, and her first investigation takes her 25 years into the past to the national miners’ strike. At the time, a kidnapping gone wrong left a small boy missing, but new evidence suggests he might still be alive. As Pirie delves deeper, she realizes the boy’s disapperance may be linked to another cold case involving a missing miner.

When a skeleton is discovered hidden at the top of a gothic Victorian building in Edinburgh, which is scheduled for renovation, Cold Case Squad detective Karen Pirie is given the task of identifying the decades-old bones. Her investigation leads her back to past conflicts, false identities and buried secrets...

In the center of historic Edinburgh, builders are preparing to convert a disused Victorian Gothic building into luxury flats. They are understandably surprised to find skeletal remains hidden in a high pinnacle that hasn't been touched by maintenance for years. But who do the bones belong to, and how did they get there? Could the eccentric British pastime of free climbing the outside of buildings play a role? Enter cold case detective Karen Pirie, who gets to work trying to establish the corpse's identity.

When a teenage joyrider crashes a stolen car and ends up in a coma, a routine DNA test reveals a connection to an unsolved murder from 22 years before. Finding the answer to the cold case should be straightforward. But it's as twisted as the DNA helix itself. Meanwhile, Karen finds herself irresistibly drawn to another mystery that she has no business investigating - a mystery that has its roots in a terrorist bombing two decades ago. And again, she finds that nothing is as it seems.

When a teenage joyrider crashes a stolen car and ends up in a coma, a routine DNA test reveals a connection to a twisted unsolved murder from 22 years before. Meanwhile, Karen Pirie finds herself irresistibly drawn into another mystery that she has no business investigating; a mystery that has its roots in a terrorist bombing two decades ago. And again, she finds that nothing is as it seems....

In Broken Ground, cold-case Detective Karen Pirie faces her hardest challenge yet. Six feet under in a Highland peat bog lies Alice Somerville’s inheritance, buried by her grandfather at the end of World War II. But when Alice finally uncovers it, she finds an unwanted surprise - a body with a bullet hole between the eyes. Meanwhile, DCI Pirie is called in to unravel a case where nothing is quite as it seems. And as she gets closer to the truth, it becomes clear that not everyone shares her desire for justice. Or even the idea of what justice is.