When a body is discovered in the remote depths of the Highlands, DCI Karen Pirie finds herself in the right place at the right time. Unearthed with someone's long-buried inheritance, the victim seems to belong to the distant past - until new evidence suggests otherwise, and Karen is called in to unravel a case where nothing is as it seems. It's not long before an overheard conversation draws Karen into the heart of a different case, however - a shocking crime she thought she'd already prevented. As she inches closer to the twisted truths at the centre of these murders, it becomes clear that she's dealing with a version of justice terrifyingly different to her own....

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....

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...

On a freezing winter morning, fishermen pull a body from the sea. It is quickly discovered that the dead man was the prime suspect in a decade-old investigation, when a prominent civil servant disappeared without trace. DCI Karen Pirie was the last detective to review the file and is drawn into a sinister world of betrayal and dark secrets. But Karen is already grappling with another case, one with even more questions and fewer answers. A skeleton has been discovered in an abandoned camper van and all clues point to a killer who never faced justice - a killer who is still out there.

Up until now, the only serial killers Tony Hill had encountered were safely behind bars. This one’s different – this one’s on the loose. Four men have been found mutilated and tortured. As fear grips the city, the police turn to clinical psychologist Tony Hill for a profile of the killer. But soon Tony becomes the unsuspecting target in a battle of wits and wills where he has to use every ounce of his professional nerve to survive.

Professor Fiona Cameron is a psychologist who uses computer technology to track serial offenders. She vowed never to work for the Met again after they went against her advice and screwed up an investigation as a result. But when her lover, thriller writer Kit Martin, tells her a fellow crime novelist has been murdered, Fiona can’t help taking an interest. With the killer striking again, Fiona is caught in a race against time.

When psychological profiler Tony Hill comes across a series of suicides among women tormented by vicious online predators, he begins to wonder if there is more to these tragedies than meets the eye. Could it be murder? But what kind of serial killer wants his crimes to stay hidden? Tony and DCI Carol Jordan begin the hunt for the most dangerous and terrifying kind of killer - someone who has nothing to fear and nothing to lose.

Spraining an ankle is rarely a stroke of luck, but for Lindsay Gordon, jobless in Glasgow, the injury is her introduction to young freelance journalist Rory McLaren and the opening of a new chapter in her life. Rory's invitation to work alongside her in her booth at the Cafe Virginia is irresistible. From there it is just a short step to political corruption and other juicy stories - all welcome distractions from Lindsay's problems at home, where her long-term lover, Sophie, has decided to heed the ticking of her biological clock and get pregnant.

Guilt and grief have driven a wedge between long time crime-fighting partners psychologist Tony Hill and ex-DCI Carol Jordan. But just because they're not talking doesn't mean the killing stops. Someone is killing women. Women who bear a disturbing resemblance to Carol Jordan. And when the evidence begins to point in a disturbing direction, thinking the unthinkable seems the only possible answer.

Meet Tony Hill's most twisted adversary - a killer with a shopping list of victims, driven by the most perverted of desires. The murder and mutilation of teenager Jennifer Maidment is horrific enough on its own. But it's not long before Tony realises it's just the start of a brutal and ruthless campaign that's targeting an apparently unconnected group of young people. Tony battles to find the answers that will give him personal and professional satisfaction in his most testing investigation yet.

There is one serial killer who has shaped and defined police profiler Tony Hill's life. One serial killer whose evil surpasses all others. One serial killer who has the power to chill him to the bone: Jacko Vance. And now Jacko is back in Tony's life. Even more twisted and cunning than ever before, he is focused on wreaking revenge on Tony - and DCI Carol Jordan - for the years he has spent in prison. Tony doesn't know when Jacko will strike, or where. 

When Robbie Bishop, star midfielder for the Bradfield Vics, is poisoned by a rare and deadly toxin, profiler Dr Tony Hill and trusted colleague DCI Carol Jordan have their work cut out for them. Then a bomb explodes in the football stadium, causing massive casualties - and another man dies from poisoning. Is there a link between the cases? What are the motives for these crimes? The clock is ticking, and the death toll keeps rising....

A protest group hits the headlines when unrest at a women's peace camp explodes into murder. Already on the scene, journalist Lindsay Gordon desperately tries to strike a balance between personal and professional responsibilities. As she peels back the layers of deception surrounding the protest and its opponents, she finds that no one - ratepayer or reporter, policeman or peace woman - seems wholly above suspicion. Then Lindsay uncovers a truth that even she can scarcely believe.... 

When DI Rowan Jackman and DS Evans are told that the IT boss has disappeared, they soon suspect foul play. Orla Cracken, known as Orac, is no ordinary techie; she was once a field agent traveling abroad undercover, working for the government. Meanwhile DC Robbie Melton discovers that two people, both urban explorers, have mysteriously disappeared whilst out exploring abandoned buildings. One went missing at a disused airfield, but was it a military base, or was it civilian?

A twisted killer targeting psychologists has left a grisly trail across Europe. Dr Tony Hill, expert at mapping the minds of murderers, is reluctant to get involved. But then the next victim is much closer to home....Meanwhile his former partner, DCI Carol Jordan, is working undercover in Berlin on a dangerous operation to trap a millionaire trafficker. When the game turns nasty, Tony is the only person she can call on for help.