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.

Summer, 1943. Daniel Berkåk works as a courier for the Press and Military Office in Stockholm. On his last cross-border mission to Norway, he carries a rucksack full of coded documents and newspapers, but before he has a chance to deliver anything he is shot and killed and the contents of his rucksack are missing. The Norwegian government, currently exiled in London, wants to know what happened, and the job goes to writer Jomar Kraby, whose first suspect is a Norwegian refugee living in Sweden, whose past that is as horrifying as the events still to come.

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.

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.

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.

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.

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.

Very soon, the top four Western leaders—American, British, French and German—will be on their way to meet their Soviet counterpart in Vienna for a crucial summit. Tweed and Martel believe one of them is the target for assassination. They must urgently work out which one—or a nightmare will come true....

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.

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.

Burned out and traumatised by her horrifying experiences around the world, aid worker Úrsula has returned to Iceland. Unable to settle, she accepts a high-profile government role. But on her first day in the post, Úrsula promises to help a mother seeking justice for her daughter, who had been raped by a policeman. A homeless man is stalking her – but is he hounding her, or warning her of some danger? And why has the death of her father in police custody so many years earlier reared its head again? 

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. 

What makes life perfect? Insurance mathematician Henri Koskinen knows the answer because he calculates everything down to the last decimal. And then, Henri is faced with the incalculable. After suddenly losing his job, Henri inherits an adventure park from his brother - its troubling financial problems included. The worst of these issues appear to originate from big loans taken from criminal quarters and dangerous men are keen to get their money back. But what Henri really can't compute is love. He meets Laura, an artist with a joie de vivre and erratic lifestyle that bewilders him. 

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.

Insurance mathematician Henri Koskinen has just restored order in his life, as well as in the adventure park he now owns, when a man from the past appears—and turns everything upside down again. More problems arise when the park's equipment supplier is taken over by a shady trio: Why won't Suomen Leikki Ltd sell the new Moose Jump to Henri when he needs it for the park's main attraction? At the same time, Henri's relationship with the artist Laura Helanto is reaching a breaking point.