Criminologist Martin Knight lives a gilded life and is a thorn in the side of the police. But then his wife, Liz, goes missing. There is no good explanation and no sign of Martin.... To make things worse, Liz is the ex-girlfriend of DCI Craig Gillard who is drawn into the investigation. Is it just a missing person or something worse? And what relevance do the events around the shocking Girl F case, so taken up by Knight, have to do with the present? The truth is darker than you could ever have imagined.

The youth theatre cast are in their places but Gus Lynch’s female lead is missing, that is, until she’s found in the boot of his car. Detective Inspector Stephen Ramsay and Sergeant Gordon Hunter are assigned to head the murder enquiry, meanwhile violence is escalating on the Starling Farm Estate as police battle to contain the latest outbreak of joyriding. Is the death of Gabriella connected to the events at Starling Farm? When another death occurs, investigations suggest a possible link, and Ramsay realizes what could have provoked someone to kill...and kill again.

The story opens with the apparently accidental drowning of a sixth form student in the Norfolk countryside. As a matter of routine, or so it seems, the case passes across the desk of Detective Sergeant Smith, recently returned to work after an internal investigation into another case that has led to tensions between officers at Kings Lake police headquarters. As an ex-DCI, Smith could have retired by now, and it is clear that some of his superiors wish that he would do so.

Was the biggest case of his career the worst mistake he ever made? Ten years ago, DCI Jack Logan stopped the serial child-killer dubbed "Mister Whisper", earning himself a commendation, a drinking problem, and a broken marriage in the process...When another child disappears a hundred miles north in the Highlands, Jack is sent to lead the investigation and bring the boy home. But as similarities between the two cases grow, could it be that Jack caught the wrong man all those years ago?

For Dorothea Cassidy Thursdays were special. But one Thursday in June was to be more special than any other. It was the day that Dorothea Cassidy was strangled. As the small town of Otterbridge prepares for its summer carnival, Inspector Stephen Ramsay begins a painstaking reconstruction of Dorothea’s last hours. He soon discovers that she had taken on a number of deserving cases – a sick and lonely old woman, a disturbed adolescent, a compulsive gambler, a single mother with a violent boyfriend and a child in care – and even her close family have their secrets to hide.

Five years ago, DCI John Lomond led the search for notorious Glasgow child-killer ‘The Sandman', until personal tragedy forced him off the case. In Lomond's absence, the killer was never found. Now, with nothing but work left in his life, Lomond remains obsessed with the case–despite the nightmares it brings. When a child is abducted in similar Sandman fashion from an affluent Glasgow suburb, Lomond is brought in to find them before it's too late.

When Matt Ballard was starting out his career, three boys were murdered in the same area, the remote and bleak Gibbet Fen. When the main suspect was killed in a hit-and-run, the killings stopped. But Matt was not satisfied that the real murderer had been caught. Over 25 years later, Matt gets a photo in an unmarked envelope. It's of the Gibbet Fen crime scene. And the picture was taken before the murder took place. More photos arrive, relating to the historic murders, as well as intimate pictures of Matt's very secret private life.

The gruesome double-murder at an Eastvale property developer’s luxury home should be an open and shut case for Superintendent Alan Banks and his team of detectives. There’s a clear link to the notoriously vicious Albanian mafia, men who left the country suspiciously soon after the murder. When Banks and his team find a cache of spy-cam videos hidden in the house, the investigation pivots to another violent crime that could cast the murders in an entirely different light.

A body is discovered deep in a cave beneath the Yorkshire Dales. Leading the investigation into the mysterious death are experienced DCI Jim Oldroyd and his partner DS Carter, a newcomer from London. The deceased is Dave Atkins, well known throughout the village but not well liked. While there is no shortage of suspects, the details of the crime leave Oldroyd and Carter stumped. 

As a massive storm batters the Scottish coast, Gordon Smith’s home is falling into the sea. The trouble is: that’s where he’s been hiding the bodies. It’s too dangerous to go near the place, so there’s no way of knowing how many people he’s murdered. Or how many more he’ll kill before he’s caught. As more horrors are discovered, ex-detective Ash Henderson is done playing nice. He’s got a killer to catch, and God help anyone who gets in his way. 

Isolated farmer Ernie Bowles was found lying on his kitchen floor, gruesomely strangled. News of the murder came to Inspector Stephen Ramsay early on Monday morning and he fears this case will not be simple. In his experience, most murders are straightforward: an explosion of family pressure, the loss of control in a fight. But Bowles seems to have kept himself to himself and had lived alone since his mother’s death. A seemingly unconnected women is then found strangled too, surely two such killings in the same locality are more than just chilling coincidence?

Former soldier. Ex-copper. Current man on the edge. Shunned by his old colleagues, and dividing his time between a dead-end job and the bottom of a whisky bottle, former Police Scotland detective superintendent Bob Hoon’s life is a mess. Then an old face from Hoon’s Special Forces days turns up asking for help: His teenage daughter has been missing for months, the police have drawn a blank, and he needs the kind of help that only Hoon can provide. And besides, Hoon owes him one.

Detective Sergeant Chris Waters got the call at 05.29 that July morning. This is it, said DCI Reeve, you'll be first there, it's all yours, you're the crime scene manager. Suddenly, after months of waiting and wondering, Waters finds himself in at the deep end, and alone at the scene of a puzzling murder. As the investigation proceeds, the detectives at Kings Lake Central find themselves visiting familiar places and talking to some familiar faces, while old enmities reappear in the incident room. Before this is over, Chris Waters will need to make a career-changing decision.

Ailsa Connolly was a brilliant psychologist and a respected criminologist. She was also a serial killer. Six years ago, DCI Sean Bracken caught her just before he was about to become her seventh victim. Every year on the anniversary of her incarceration, she taunts him with a phone call, giving him one message: "When I get out, I'll kill you." Now, Bracken has transferred back to Edinburgh and is thrown into the deep end on his first day back on duty. There's a killer who is emulating Ailsa, threatening to surpass her body count. 

No one in Heppleburn has a bad word to say about Alice Parry...but here she is, murdered in her own backyard on a bitter St. David’s Eve. When detective Stephen Ramsay starts asking questions in the village, a more ambiguous picture begins to emerge. Yes, old Mrs. Parry was loved by everyone, but sometimes her kindness had caused trouble. Yes, her two nephews were devoted to her, but they didn’t really want her interfering in their rather complicated personal lives.