In an isolated village in the Icelandic Westfjords, three friends set to work renovating a rundown house. But soon, they realize they are not as alone as they thought. Something wants them to leave, and it's making its presence felt. Meanwhile, in a town across the fjord, a young doctor investigating the suicide of an elderly woman discovers that she was obsessed with his vanished son. When the two stories collide, the terrifying truth is uncovered.

The only person who might have the answers to a baffling murder case is the victim's seven-year-old daughter, found hiding in the room where her mother died. And she's not talking. Newly-promoted, out of his depth, detective Huldar turns to Freyja for her expertise with traumatized young people. Freyja, who distrusts the police in general and Huldar in particular, isn't best pleased. But she's determined to keep little Margret safe. It may prove tricky. The killer is leaving them strange clues: warnings in text messages, sums scribbled on bits of paper, numbers on the radio.

When a body of a woman is discovered at a lighthouse in the Icelandic town of Akranes, it soon becomes clear that she’s no stranger to the area. Chief Investigating Officer Elma, who has returned to Akranes following a failed relationship, and her collegues Sævar and Hörður commence an uneasy investigation which uncovers a shocking secret in the dead woman’s past that continues to reverberate in the present day.

The body of a young Russian woman washes up on an Icelandic shore. After a cursory investigation, the death is declared a suicide and the case is quietly closed. Over a year later Detective Inspector Hulda Hermannsdóttir of the Reykjavík police is forced into early retirement at 64. She dreads the loneliness, and the memories of her dark past that threaten to come back to haunt her. But before she leaves she is given two weeks to solve a single cold case of her choice.

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.

The police are desperate for information on the triple homicide. Detective Joona Linna enlists the help of hypnotist Erik Maria Bark. But when Bark unlocks the secrets in the boy’s memory, he triggers a terrifying chain of events that will put all their lives in jeopardy.

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.

On the day Stockholm police officer Hanna Ahlander’s personal and professional lives crash, she takes refuge at her sister’s lodge in the Swedish ski resort paradise of Åre. But it’s a brief comfort. The entire village is shaken by the sudden vanishing of a local teenage girl. Hanna can’t help but investigate, and while searching for the missing person, she lands a job with the local police department. There she joins forces with Detective Inspector Daniel Lindskog, who has been tasked with finding the girl. Their only lead: a scarf in the snow.

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?

When a 15-year-old girl fails to make it home after school, DI Heather Filson believes she’s dealing with just another teenage runaway. The girl’s grandfather, a notorious Glasgow gangster, disagrees. Convinced one of his underworld enemies has grabbed her, he’s prepared to bathe the city in blood in order to bring his princess home.

Fresh from a brief stay at a psych hospital, reporter Camille Preaker faces a troubling assignment: She must return to her tiny hometown to cover the murders of two preteen girls. For years, Camille has hardly spoken to her neurotic, hypochondriac mother or to the half-sister she barely knows: a beautiful 13-year-old with an eerie grip on the town. Now, installed in her old bedroom in her family's Victorian mansion, Camille finds herself identifying with the young victims - a bit too strongly.

Libby Day was seven when her mother and two sisters were murdered in "The Satan Sacrifice of Kinnakee, Kansas". As her family lay dying, little Libby fled their tiny farmhouse into the freezing January snow. She lost some fingers and toes, but she survived, and famously testified that her 15-year-old brother, Ben, was the killer. Twenty-five years later, Ben sits in prison, and troubled Libby lives off the dregs of a trust created by well-wishers who've long forgotten her.

As dusk approaches a small Dublin suburb in the summer of 1984, mothers begin to call their children home. But on this warm evening, three children do not return from the dark and silent woods. When the police arrive, they find only one of the children gripping a tree trunk in terror, wearing blood-filled sneakers, and unable to recall a single detail of the previous hours. Twenty years later, the found boy, Rob Ryan, is a detective on the Dublin Murder Squad and keeps his past a secret.

Living on her family’s gorgeous lakeside estate in Cornwall, England, Alice Edevane is a bright, clever, inquisitive, innocent, and precociously talented fourteen-year-old who loves to write stories. But the mysteries she pens are no match for the one her family is about to endure ...One midsummer’s eve, after a beautiful party drawing hundreds of guests to the estate has ended, the Edevanes discover that their youngest son, Theo, has vanished without a trace.

In a Stockholm city park, police discover the hideously abused body of a young boy. Detective Superintendent Jeanette Kihlberg heads the investigation, battling an apathetic prosecutor and a bureaucratic police force unwilling to devote resources to solving the murder of a nameless immigrant child. But with the discovery of two more mutilated children's corpses, it becomes clear that a serial killer is at large.