It's been several years since Detective Jimmy Perez left Shetland. He has settled into his new home in Orkney, the group of islands, off the northern coast of Scotland, with his partner Willow Reeve and their growing family. One stormy winter night, his oldest and closest friend, Archie Stout, goes missing. Ever the detective, Perez catches a boat to the island of Westray, where Archie worked as a farmer and lived with his wife and children. But when he arrives he finds a shocking scene.

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.

Detective Inspector Karen Eiken Hornby has returned to the main island, Heimö, after many years in London and has worked hard to become one of the few female police officers in Doggerland. So, when she wakes up in a hotel room next to her boss, Jounas Smeed, she knows she's made a big mistake. But things are about to get worse: later that day, Jounas's ex-wife is found brutally murdered. And Karen is the only one who can give him an alibi.

November, 1967, Iceland. Fourteen-year-old Marsi has a secret penpal – a boy who lives on the other side of the country – but she has been writing to him in her older sister's name. Now she is excited to meet him for the first time. But when the date arrives, Marsi is prevented from going, and during the night her sister Stína goes missing – her bloodstained anorak later found at the place where Marsibil and her penpal had agreed to meet. November, 1977. Stína's disappearance remains unsolved.

When two teenagers - Johannes and Mari - are found murdered inside their school, in the small Norwegian village of Fredheim, the finger is soon is pointed at 18-year-old Even, whose relationship with Mari ended just before she died. Mari was writing a story for the school newspaper about Even and his dad, who died in a car accident 10 years earlier. But was it really an accident? And had Mari uncovered information that someone was willing to commit murder to protect?

Carl Mørck used to be one of Denmark’s best homicide detectives. Then a hail of bullets destroyed the lives of two fellow cops, and Carl - who didn’t draw his weapon - blames himself. So a promotion is the last thing he expects. But Department Q is a department of one, and Carl’s got only a stack of cold cases for company. His colleagues snicker, but Carl may have the last laugh, because one file keeps nagging at him: A liberal politician vanished five years earlier and is presumed dead. But she isn’t dead...yet.

When editor Susan Ryeland is given the manuscript of Alan Conway's latest novel, she has no reason to think it will be much different from any of his others. After working with the best-selling crime writer for years, she's intimately familiar with his detective, Atticus Pünd, who solves mysteries disturbing sleepy English villages. An homage to queens of classic British crime such as Agatha Christie and Dorothy Sayers, Alan's traditional formula has proved hugely successful.

DS George Cross can be rude, difficult and awkward with people. But his unfailing logic and dogged pursuit of the truth means his conviction rate is the best on the force. So when his police colleagues dismiss the death of a man as a squabble among Bristol's homeless community, Detective Sergeant George Cross is not convinced.

Oslo, 2018. Former long-distance runner Sonja Nordstrøm never shows at the launch of her controversial autobiography, Always Number One. When celebrity blogger Emma Ramm visits Nordstrøm’s home later that day, she finds the door unlocked and signs of a struggle inside. A bib with the number one has been pinned to the TV. Police officer Alexander Blix is appointed to head up the missing-persons investigation, but he still bears the emotional scars of a hostage situation 19 years earlier, when he killed the father of a five-year-old girl.

Dan Garvie’s life has been haunted by the crime he witnessed as a child—narrowly escaping an encounter with a notorious serial killer. He has dedicated his life since to becoming a criminal profiler, eager to seek justice for innocent victims. So when his father passes away under suspicious circumstances, Dan revisits his small island community, determined to uncover the truth about his death. Is it possible that the monster he remembers from his childhood nightmares has returned after all these years?

When 19-year-old Iselin Hanssen disappears during a run in a popular hiking area in Bodø, Northern Norway, suspicion quickly falls on her boyfriend. For investigator Jakob Weber, the case seems clear-cut, almost unexceptional, even though there is some suggestion that Iselin lived parts of her life beneath the radar of both family and friends. But events take a dramatic turn when another woman disappears in similar circumstances - this time on the island of Røst, hundreds of miles off the coast, in the wild ocean.

When a young woman is found lying half-naked in the snow, bleeding and unconscious, and a highly esteemed, elderly writer falls to his death in the local theater, Ari is dragged straight into the heart of a community where he can trust no one and secrets and lies are a way of life. Past plays tag with the present and the claustrophobic tension mounts as Ari is thrust ever deeper into his own darkness - blinded by snow and with a killer on the loose.

Ryan Wilkins grew up on a trailer park, a member of what many people would call the criminal classes. As a young Detective Inspector, he's lost none of his disgust with privileged elites - or his objectionable manners. But he notices things; they stick to his eyes. His professional partner, DI Ray Wilkins, of affluent Nigerian London heritage, is an impeccably groomed, smooth-talking graduate of Balliol College, Oxford. You wouldn't think they would get on. They don't. But when a young woman is found strangled at Barnabas Hall, they're forced to.

For Dash Fuller, Hollywood's underbelly is home sweet home. He's spent years helping to disappear the film industry's worst secrets, and it's left him a cynical burnout who loves bourbon a little too much. But when a young woman named Madeline Ironwood comes to him with a peculiar quest, Dash sees it as a chance for redemption. Madeline is the daughter of Ken Ironwood, a notorious smuggler and murderer who disappeared 20 years ago. Ken's skeleton was recently discovered in a barrel at the bottom of a dried-up lake, and Madeline wants to know who killed him.

By all accounts, Carl and Roy Opgard are doing quite well for themselves. Or at least they’re doing as well as can be expected in a small town like Os. Carl manages the area’s swanky and successful spa and hotel, while Roy runs a nearby gas station and harbors grand plans to build it out into an entire amusement park, complete with a roller coaster. But when news breaks about a new highway to be built nearby, bypassing Os and leaving the town cutoff and isolated, it’s clear that something has to be done . . . even if the methods are bound to be dirty.