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.

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.

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.

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.

Mary Shields is a moody, acerbic probation officer dealing with some of Glasgow’s worst cases, and her job is on the line. Liam Macdowall was imprisoned for murdering his wife, and he’s published a series of letters to the dead woman, in a book that makes him an unlikely hero - and a poster boy for Men’s Rights activists. Liam is released on licence into Mary’s care, but things are far from simple. Mary develops a poisonous obsession with Liam and his world, and when her son and Liam’s daughter form a relationship, Mary will stop at nothing to impose her own brand of justice.

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?

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.

Mataura is a small town in rural New Zealand where, apart from the odd tractor theft, nothing very interesting happens. But when the body of a young mother is found washed up on the banks of the Mataura River, the small rural community is rocked by her tragic suicide. All is not what it seems, however. Sam Shephard, sole-charge police constable in the town, soon discovers the death was no suicide and has to face the realisation that there is a killer in town. To complicate the situation, the murdered woman was the wife of Sam's former lover.

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.

In Tokyo, murder’s easy to hide. Detective Hiroshi Shimizu investigates white-collar crime in Tokyo. When an American businessman turns up dead, his mentor Takamatsu calls him out to the site of a grisly murder. A glimpse from a security camera video suggests the killer might be a woman. Hiroshi quickly learns how close homicide and suicide can appear in a city full of high-speed trains just a step - or a push - away. 

After convicting a superior for corruption and shooting off a gangster's crown jewels, the career of Hamburg's most hard-bitten state prosecutor, Chastity Riley, has taken a nosedive: she has been transferred to the tedium of witness protection to prevent her making any more trouble. However, when she is assigned to the case of an anonymous man lying under police guard in hospital - almost every bone in his body broken, a finger cut off, and refusing to speak in anything other than riddles - Chastity's instinct for the big, exciting case kicks in.

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.

Fisheries officer Simone Lord is transferred to Quebec's remote Magdalen Islands for the winter, and at the last minute ordered to go aboard a trawler braving a winter storm for the traditional grey seal hunt, while all of the other boats shelter onshore. Detective Sergeant Joaquin Moralès is on a cross-country boat trip down the St Lawrence River, accompanied by Nadine Lauzon, a forensic psychologist working on the case of a savagely beaten teenager with Moralès' old team in Montreal.