Being on the murder squad is nothing like Detective Antoinette Conway dreamed it would be. Her partner, Stephen Moran, is the only person who seems glad she's there. The rest of her working life is a stream of thankless cases, vicious pranks, and harassment. Antoinette is savagely tough, but she's getting close to the breaking point. Their new case looks like yet another by-the-numbers lovers' quarrel gone bad. Aislinn Murray is blond, pretty, groomed to a shine, and dead in her catalogue-perfect living room, next to a table set for a romantic dinner.

A year ago a boy was found murdered at a girlsʼ boarding school, and the case was never solved. Detective Stephen Moran has been waiting for his chance to join Dublin’s Murder Squad when 16-year-old Holly Mackey arrives in his office with a photo of the boy with the caption: “I know who killed him". Stephen joins with Detective Antoinette Conway to reopen the case - beneath the watchful eye of Holly’s father, fellow detective Frank Mackey. The private underworld of teenage girls turns out to be more mysterious and more dangerous than the detectives imagined.

Cal Hooper thought a fixer-upper in a bucolic Irish village would be the perfect escape. After 25 years in the Chicago police force and a bruising divorce, he just wants to build a new life in a pretty spot with a good pub where nothing much happens. But when a local kid whose brother has gone missing arm-twists him into investigating, Cal uncovers layers of darkness beneath his picturesque retreat, and starts to realize that even small towns shelter dangerous secrets.

When a badly burned body is found near the remote Ardnamurchan Lighthouse on the west coast of Scotland, it feels like just another day on the job for DCI Jack Logan and his team. But the victim’s list of enemies, including a diminutive loan shark and a powerful local politician, is far longer than Jack was prepared for. And don’t even get him started on the magic psychic sex cult.

With a glittering career, spanning several decades representing the privileged and the wealthy, behind him the focus of the investigation inevitably turns toward cases and clients past and present, but was his death linked to his work or is there another, darker and far more sinister motive at play? No matter how successful, privileged or elevated in society one person can be, one universal rule applies; we all bleed the same.

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.

When the body of a man is found dead in his remote, isolated home, DI Tom Janssen and his team struggle to understand what motive there could be to murder such an inoffensive, seemingly placid local character. The man lived alone and was well known in the community, but kept his distance from others, leading a haphazard way of life almost entirely off the grid. What secrets did he hide in his private life that might be worth killing for? As the team are about to understand, even the most nondescript of people can exist in a world darker than most of us will ever see....

DCI Jack Logan should’ve known things were going too well. Genuinely happy for the first time in years, Jack has almost fooled himself into believing that the world is a decent place. But when the discovery of a mutilated body kicks off a series of grisly murders, Jack’s dream of a peaceful life rapidly begins to crumble around him. With friends in danger and enemies begging for his help, Jack must risk everything to protect the final would-be victim and stop the most monstrous killer he’s ever faced.

When a nurse is murdered on her way home from nightshift, Jack and his team go on the hunt for her killer. As more victims are uncovered, Jack finds himself tracking a murderer afflicted by a unique psychosis - one that leaves him free to maim and kill without a shred of remorse. Facing a new type of killer in an unfamiliar city, DCI Jack Logan is about to be pushed to his limits, before being forced to realize just how little he truly knows.

When a badly mutilated body washes up on the shores of Loch Ness, DCI Jack Logan's dream of a quiet life in the Highlands is shattered. While the media speculates wildly about monster attacks, Jack and the Major Investigations Team must act fast to catch the killer before they can strike again. But with Nessie-hunters descending on the area in their dozens, and an old enemy rearing his ugly head, the case could well turn out to be the most challenging of Jack's career. And, if he isn't careful, the last.

DCI Craig Gillard will be pushed to his limits. But will he break? It seems like a routine disappearance, a case of musician’s stage fright. As a senior detective, Craig Gillard isn’t sure why he’s even involved. Until it turns out the woman’s father is the German minister of justice, and the British home secretary is on the case, too. But nothing about the case is simple. How does a woman on a train simply vanish? What do you do when a trail runs cold and the pressure is on? Before long the perpetrator has another target: DCI Gillard himself.

When a body is discovered at a popular Highland landmark, it seems like just another day on the job for DCI Jack Logan and his team. Except this body is missing a very vital component, and given its location - The Well of Seven Heads - it seems like someone is trying to send a message. But why? And to whom? 

On a remote Highland mountain, the body of Elaine Buxton is burning. All that will be left to identify the respected lawyer are her teeth and a fragment of clothing. In the concealed back room of a house in Edinburgh, the real Elaine Buxton screams into the darkness…. Detective Inspector Luc Callanach has barely set foot in his new office when Elaine’s missing persons case is escalated to a murder investigation. Having left behind a promising career at Interpol, he’s eager to prove himself to his new team.

Toby is a happy-go-lucky charmer who's dodged a scrape at work and is celebrating with friends when the night takes a turn that will change his life - he surprises two burglars who beat him and leave him for dead. Struggling to recover from his injuries, beginning to understand that he might never be the same man again, he takes refuge at his family's ancestral home to care for his dying uncle Hugo. Then a skull is found in the trunk of an elm tree in the garden - and as detectives close in, Toby is forced to face the possibility that his past may not be what he has always believed.

Spring, 1921. Scotland Yard sends Inspector Ian Rutledge to the sea-battered village of Walmer on the coast of Essex, where amongst the salt flats and a military airfield lies Benton Abbey, a grand manor with a storied past. The lady of the house may prove his most bewildering witness yet. She claims she saw a violent murder - but there is no body, no blood. She also insists she recognized the killer: Captain Nelson. Only it could not have been Nelson because he died during the war.