Bergen Private Investigator Varg Veum is perplexed when two wildly different cases cross his desk at the same time. A lawyer, anxious to protect her privacy, asks Varg to find her sister, who has disappeared with her husband, seemingly without trace, while a ship carrying unknown cargo is heading towards the Norwegian coast, and the authorities need answers. Varg immerses himself in the investigations, and it becomes clear that the two cases are linked, and have unsettling - and increasingly uncanny - similarities to events that took place 36 years earlier.

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 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.

When Óttar Karlsson, a wealthy and respected government official and businessman, is found murdered, after failing to turn up at his own surprise birthday party, the police are at a loss. It isn't until young police officer Sigurdís finds a well-hidden safe in his impersonal luxury apartment that clues start emerging. As Óttar's shady business dealings become clear, a second unexpected line of enquiry emerges, when Sigurdís finds a US phone number in the safe, along with papers showing regular money transfers to an American account.

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.

Oslo, 1938. War is in the air and Europe is in turmoil. Hitler’s Germany has occupied Austria and is threatening Czechoslovakia; there’s a civil war in Spain and Mussolini reigns in Italy. When a woman turns up at the office of police-turned-private investigator Ludvig Paaske, he and his assistant – his one-time nemesis and former drug-smuggler Jack Rivers – begin a seemingly straightforward investigation into marital infidelity.

Copenhagen author Hannah is the darling of the literary community and her novels have achieved massive critical acclaim. But nobody actually reads them, and frustrated by writer's block, Hannah has the feeling that she's doing something wrong. When she expresses her contempt for genre fiction, Hanna is publicly challenged to write a crime novel in 30 days. Scared that she will lose face, she accepts, and her editor sends her to Húsafjöður; a quiet, tight-knit village in Iceland, filled with colourful local characters - for inspiration.

Suspended from duty, Detective Frølich is working as a private investigator when his girlfriend's colleague asks for his help with a female asylum seeker who the authorities are about to deport. She claims to have a sister in Norway and fears that returning to her home country will mean instant death. Frølich quickly discovers the whereabouts of the young woman's sister, but things become increasingly complex when she denies having a sibling, and Frølich is threatened off the case by the police.

Art expert Emma Lindhal is anxious when she's asked to appraise the antiques in the infamous manor house of one of Sweden's wealthiest families, on the island of Storholmen, where a young woman was murdered nine years earlier, her killer never found. As she goes about her painstaking work and one shocking discovery yields clues that lead to another, Emma becomes determined to uncover the secrets of the house and its occupants. When the lifeless body of another young woman is found in the icy waters surrounding the island, Detective Karl Rosén arrives to investigate.

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. 

In 1942, Jewish courier Ester is betrayed, narrowly avoiding arrest by the Gestapo. In a great haste, she escapes to Sweden, saving herself. Her family in Oslo, however, is deported to Auschwitz. In Stockholm, Ester meets the resistance hero Gerhard Falkum, who has left his little daughter and fled both the Germans and allegations that he murdered his wife, Åse, who helped Ester get to Sweden. Their burgeoning relationship ends abruptly when Falkum dies in a fire. And yet, 25 years later, Falkum shows up in Oslo. He wants to reconnect with his daughter.

In a last ditch effort to revive his career, washed-out Agent Ari Ben-Sion accepts a mission he never would have 30 years ago to smuggle a group of Jewish children out of the Damascus ghetto. Or so he thinks. In Damascus, a beautiful American photographer, Kim, seems to be falling in love with Ari, but she is asking too many questions. His communication equipment disappears. His contact never shows up. The operation is only hours away, and everything seems awry. Desperate to succeed, Ari might risk everything. Even his life. 

Southern Sweden: Beautiful countryside, endless forests, coastal walks, dark days - and even darker nights. But beneath the beauty lies a dark heart... Skåne, 1986: On the night of Walpurgis, the eve of May Day, where bonfires are lit to ward off evil spirits and preparations are made to celebrate the renewal of spring, a sixteen-year-old girl is ritualistically murdered in the woods beside a castle. Her stepbrother is convicted of the terrible deed and shortly after, the entire family vanishes without a trace.

Falkenberg, Sweden. The mutilated body of talented young jewellery designer, Linnea Blix, is found in a snow-swept marina. Hampstead Heath, London. The body of a young boy is discovered with similar wounds to Linnea's. Buchenwald Concentration Camp, 1944. In the midst of the hell of the Holocaust, Erich Hebner will do anything to see himself as a human again. Are the two murders the work of a serial killer, and how are they connected to shocking events at Buchenwald?

Fresh from maternity leave, Detective Elma finds herself confronted with a complex case, when a man is found murdered in a holiday cottage in the depths of the Icelandic countryside - the victim of a frenzied knife attack, with a shocking message scrawled on the wall above him.