D.I. Duncan McAdam is dispatched home to the Misty Isle. A body has been found buried in a remote location on the Waternish peninsula. Well-preserved in the peat, Isla Matheson—missing for the better part of two decades—is revealed to a shocked island community. A teenage runaway is dead...and no one is talking.

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.

Four in the morning, mid-December, and snow blankets St. Andrews School. Student Alex Gilbery and his three best friends are staggering home from a party when they stumble upon the body of a young woman. Rosie Duff has been raped, stabbed and left for dead in the ancient Pictish cemetery. The only suspects are the four young students stained with her blood. Twenty-five years later, police mount a cold case review. Among the unsolved murders they're examining is that of Rosie Duff. But someone else has his own idea of justice.

Flynn was only a teenager when her parents were killed in a terrible accident. Too young to lose her parents, too young to take on responsibility for her younger sister Kaiya, too young to protect Kaiya from the harshness of their new lives in the following years. Desperate to help her sister, Flynn reaches out to Willa Tomlinson, a grief counsellor renowned for helping her patients cope with profound loss. Under Willa’s influence and care, Kaiya finally seems to turn a corner, joining the climate action collective that Willa leads.

Detective Sergeant Mark Ariti has taken a few days' holiday in Broken Bay at precisely the wrong time. The small fishing town on South Australia's Limestone Coast is now the scene of a terrible tragedy. Renowned cave-diver Mya Rennik has drowned while exploring a sinkhole on the land of wealthy farmer Frank Doyle. As the press descends, Mark's boss orders him to stay put and assist the police operation. But when they retrieve Mya's body, a whole new mystery is opened up, around the disappearance of a young local woman twenty years before.

Two years ago, a hostile Prime Minister launched the Monochrome inquiry, investigating "historical over-reaching" by the British Secret Service “to investigate historical over-reaching.” Monochrome’s mission was to ferret out any hint of misconduct by any MI5 officer—and allowed Griselda Fleet and Malcolm Kyle, the two civil servants seconded to the project, unfettered access to any and all confidential information in the Service archives in order to do so. But MI5’s formidable First Desk did not become Britain’s top spy by accident, and she has successfully thwarted the inquiry at every turn.

In North Devon, where two rivers converge and run into the sea, Detective Matthew Venn stands outside the church as his estranged father’s funeral takes place. On the day Matthew left the strict evangelical community he grew up in, he lost his family, too. Now, as he turns and walks away again, he receives a call from one of his team. A body has been found on the beach nearby: a man with a tattoo of an albatross on his neck, stabbed to death. The case calls Matthew back to the people and places of his past, as deadly secrets hidden at their hearts are revealed.

Northern Ireland, spring 1981. Hunger strikes, riots, power cuts, a homophobic serial killer with a penchant for opera, and a young woman’s suicide that may yet turn out to be murder: on the surface, the events are unconnected, but then things—and people—aren’t always what they seem. Detective Sergeant Duffy is the man tasked with trying to get to the bottom of it all. It’s no easy job—especially when it turns out that one of the victims was involved in the IRA but was last seen discussing business with someone from the loyalist Ulster Volunteer Force.

Max Rupert has left his position as a Minneapolis homicide detective to live in solitude. Mourning the tragic death of his wife, he's also racked by guilt—he alone knows what happened to her killer. But then the former local sheriff, Lyle Voight, arrives with a desperate plea: Lyle’s daughter Sandy and his six-year-old grandson Pip have disappeared. Lyle’s certain Sandy's ex-husband Reed is behind it, but the new sheriff is refusing to investigate. When Max reluctantly looks into their disappearance, he too becomes convinced something has gone very wrong.

Titus Crown is the first Black sheriff in the history of Charon County, Virginia. In recent decades, quiet Charon has had only two murders. But after years of working as an FBI agent, Titus knows better than anyone that while his hometown might seem like a land of moonshine, cornbread, and honeysuckle, secrets always fester under the surface. Then a year to the day after Titus’s election, a school teacher is killed by a former student and the student is fatally shot by Titus’s deputies. As Titus investigates the shootings, he unearths terrible crimes.

A young meteorologist checking a mountain top weather station in Kinlochleven discovers the body of a missing man entombed in ice. Cameron Brodie, a Glasgow detective, sets out on a hazardous journey to the isolated and ice-bound village. He has his own reasons for wanting to investigate a murder case so far from his beat. Brodie must face up to the ghosts of his past and to a killer determined to bury forever the chilling secret that his investigation threatens to expose.

Two criminal empires together control all of New England. Until a beautiful woman comes between the Irish and the Italians, launching a war that will see them kill each other, destroy an alliance, and set a city on fire. Danny Ryan yearns for a more “legit” life and a place in the sun. But as the bloody conflict stacks body on body and brother turns against brother, Danny has to rise above himself.

After moving from a small country town to Seattle, Heather Baxter marries Tom, a widowed doctor with a young son and teenage daughter. A working vacation overseas seems like the perfect way to bring the new family together, but once they’re deep in the Australian outback, the jet-lagged and exhausted kids are so over their new mom. When they discover remote Dutch Island, off-limits to outside visitors, the family talks their way onto the ferry. But as soon as they set foot on the island, which is run by a tightly knit clan of locals, everything feels wrong.

Evan Evans is a young police constable who has traded in the violence of city life for idyllic Llanfair, a Welsh village tucked far away from trouble. Nestled among the Snowdonia mountain range, Llanfair looks to Constable Evans like a town forgotten by time, but he quickly learns that even the bucolic countryside has its share of eccentric - and deadly - characters.

When a young boy discovers the body of a woman beneath a thick sheet of ice in a South London park, Detective Erika Foster is called in to lead the murder investigation. The victim, a beautiful young socialite, appeared to have the perfect life. Yet when Erika begins to dig deeper, she starts to connect the dots between the murder and the killings of three prostitutes, all found strangled, hands bound, and dumped in water around London.