Icelandic sisters Áróra and Ísafold live in different countries and aren‘t on speaking terms, but when their mother loses contact with Ísafold, Áróra reluctantly returns to Iceland to find her sister. But she soon realises that her sister isn’t avoiding her...she has disappeared. As she confronts Ísafold’s abusive, drug-dealing boyfriend Björn, and begins to probe her sister’s reclusive neighbours, Áróra is led into an ever-darker web of intrigue and manipulation.

When a landslip on Pembrokeshire’s stunning coastal path reveals the harrowing remains of two bodies, ex-DCI Evan Warlow’s quiet retirement is shattered.

After a messy divorce, attractive young mother Sonia is struggling to provide for herself and keep custody of her son. With her back to the wall, she resorts to smuggling cocaine into Iceland and finds herself caught up in a ruthless criminal world. As she desperately looks for a way out of trouble, she must pit her wits against her nemesis, Bragi, a customs officer whose years of experience frustrate her new and evermore daring strategies.

At a former sanatorium in the north of Iceland, now a hospital ward, an old nurse, Yrsa, is found murdered. Detective Hulda Hermannsdottir and her boss, Sverrir, are sent to investigate her death. There, they discover five suspects: the chief physician, two junior nurses, a young doctor, and the caretaker, who is arrested following false testimony from one of the nurses, but subsequently released. Less than a week after the murder, the chief physician, is also found dead, having apparently fallen from a balcony.

When Victoria Davies was pushed off her stately home's roof in 2001, all evidence pointed to her husband Michael. But now, 20 years later a letter has appeared, written by Victoria before her death; a letter that was never received, and a letter that brings new suspects into the fray; Labor MPs Shaun Donnal, Andrew MacIntyre, and Charles Baker.

Una wants nothing more than to teach, but she has been unable to secure steady employment in Reykjavík. Her savings are depleted, her love life is nonexistent, and she cannot face another winter staring at the four walls of her shabby apartment. Celebrating Christmas and ringing in 1986 in the remote fishing hamlet of Skálar seems like a small price to pay for a chance to earn some teaching credentials and get her life back on track.

DI Nikki Galena: A police detective with nothing left to lose, she's seen a girl die in her arms, and her daughter will never leave the hospital again. She's gotten tough on the criminals she believes did this to her. Too tough. And now she's been given one final warning: make it work with her new sergeant, DS Joseph Easter, or she's out.

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.

When a body is found on a lonely cliff top path, the angelic face of a murdered teenager lies facing the rising sun. Strangled by the hands of an unknown killer, it falls to DI Tom Janssen and his fledgling team to find out how she came to be there. Destined for a career in medicine, one to rival that of her parents, Holly Bettany’s future was as bright as it had been privileged. Seemingly, all that could threaten this promising teenager’s life was Holly herself.

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.

When a boy leaps to his death from a bridge in the northern town of Umeå, Sweden, police discover drugs scattered in the snow near his body. The town has seen a dramatic increase in narcotic use among its youth, but nobody knows where the pills are coming from.

A frozen body is discovered in the icy depths of Langjökull glacier, apparently that of a businessman who disappeared 30 years before. At the time, an extensive search and police investigation yielded no results - one of the missing man’s business associates was briefly held in custody, but there wasn’t enough evidence to charge him.

Iceland, 1956. Fourteen-year-old Lára decides to spend the summer working for a couple on the small island of Videy, just off the coast of Reykjavík. In early August, the girl disappears without a trace. Time passes, and the mystery becomes Iceland‘s most infamous unsolved case. What happened to the young girl? Is she still alive? Did she leave the island, or did something happen to her there? Thirty years later, as the city of Reykjavík celebrates its 200th anniversary, journalist Valur Robertsson begins his own investigation into Lára's case.

Detective Kjeld Nygaard wants nothing more than to forget his family and Varsund, the small mining town he once called home, even exist. But while on suspension after his last case went disastrously wrong, his estranged father, Stenar, leaves a message on Kjeld’s phone claiming he’s seen a murder. But with no evidence and Stenar suffering from Alzheimer’s, the local police think he must have imagined it.

Five serial killers. Known only to each other as: Alpha. Bravo. Charlie. Delta. Easy. Connected through a secure internet location, encrypted and concealed, a unique chat room they have named Jack’s Special Place in homage to their ultimate model—the one killer they hold in the highest esteem: Whitechapel, London. 1888. The infamous murderer remembered in dark history as Jack the Ripper. And so, they are Jack’s Boys. They delight in each other’s crimes. They relish in taunting police around the world with odd clues and deep confusion—the modern version of the Victorian-era killer they emulate.