A man, wearing his daughter’s wedding ring, is found in front of his fireplace, a bullet hole in his chest. A funeral director searches desperately for his brother - a man who doesn’t seem to be missed. A woman struggles to protect her children and her life as her husband turns ever more dangerous. Fredrika Bergman and Alex Recht believe that these three cases are totally unrelated...until they uncover a connection between these three people that changes everything. 

The body of a young woman is found carved up and buried in a forest glade in an innocuous Swedish suburb. Alex Recht and his team in the Stockholm Police soon identify the body as belonging to missing student Rebecca Trolle, but as his team continues to excavate the site, they soon find that someone has been returning to the same spot to bury their victims year after year, decade after decade.

Fifteen years ago, a teenage girl was assaulted and raped as she picked flowers for a Midsummer's Eve ritual. Cut to the present, and a man is killed in a hit-and-run. He has no identification on him; he is not reported missing or wanted by the police. At the same time, a priest and his wife are found dead in an apparent suicide.

A tragic past. Thirty years ago, the body of a teenage boy was found in Gullspång's lake, and his best friend vanished from her home. Paul Bergman's death was ruled a suicide; Francesca was never found. An unsolved case. Drawn back to Gullspång, Detective Inspector Charlie Lager is haunted by the strange house she knew as a child, and by the missing girl who once lived there. Convinced that the original investigation was flawed, Charlie is determined to uncover what really happened all those decades ago.  

Disgraced, damaged former police officer Thorkild Aske has stopped taking his painkillers after his last experience searching for the missing in Northern Norway. Wracked by withdrawal and desperate for work, he reluctantly agrees to investigate the disappearance of two schoolgirls for best-selling crime writer Milla Lind - but he soon discovers that Lind’s interest in the case is not, as she claims, simply research for her latest novel. 

When a six-year-old girl is found dead, hanging from a tree, the only clue the Oslo Police have to work with is an airline tag around her neck. It reads, 'I'm travelling alone'. Holger Munch, veteran police investigator, is immediately charged with reassembling his homicide unit. But to complete the team, he must convince his erstwhile partner, Mia Krüger - a brilliant but troubled investigator - to return from the solitary island where she has retreated with plans to take her own life.

On a jagged, bleak lava field just outside Reykjavik stands the Gallows Rock. Once a place of execution, it is now a tourist attraction. Until this morning, when a man was found hanging from it. The nail embedded in his chest proves it wasn't suicide. But when the police go to his flat, a further puzzle awaits: a four-year-old boy has been left there. He doesn't seem to have any link with the victim, his parents cannot be found and his drawings show he witnessed something terrible.

When a young woman is found dead, the police are quick to respond. But what they find at the scene is unexpected. The body is posed, the scene laboriously set. And there is almost no forensic evidence to be found. Detective Mia Krüger has been signed off work pending psychological assessment. But her boss has less regard for the rules than he should. Desperate to get Mia back in the office, Holger Munch offers her an unofficial deal.

Nora's daughter, Annabelle, has disappeared, last seen on her way home from a party. Gullspång's inexperienced police are wilting under the national media spotlight - and its residents desperate for answers. Stockholm DI Charlie Lager must return home to find Annabelle and then get out of town as soon as she can. Before everyone discovers the truth about her....  

When single mother Maríanna disappears from her home, leaving an apologetic note on the kitchen table, everyone assumes that she's taken her own life...until her body is found in the Grábrók lava fields seven months later, clearly the victim of murder. Her neglected 15-year-old daughter, Hekla, has been placed in foster care, but is her perfect new life hiding something sinister?

At 59 years old, Valdemar Roos is tired of life. Working a job he hates, with a wife he barely talks to and two step-daughters he doesn't get on with, he doesn't have a lot to look forward to. Then, one day, a winning lottery ticket gives him an opportunity to start afresh. Without telling a soul, he quits his job and buys a hut in the remote Swedish countryside. Every day he travels down to this man-made oasis, returning each evening to his unsuspecting wife. Life couldn't be better, until a young woman arrives in paradise.

Fresh out of prison and a stint in a psychiatric hospital, disgraced ex-policeman Thorkild Aske only wants to lose himself in drugged dreams of his beloved Frei. Wild, unknowable Frei. The woman he loved. The woman he has lost forever. Yet when Frei’s young cousin goes missing off the Norwegian coast and Thorkild is called in by the family to help find him, dead or alive, Thorkild cannot refuse. He owes them this. Tormented by his past, Thorkild soon finds himself deep in treacherous waters. He’s lost his reputation - will he now lose his life?

Oslo, New Year’s Eve. The annual firework celebration is rocked by an explosion, and the city is put on terrorist alert. Police officer Alexander Blix and blogger Emma Ramm are on the scene, and when a severely injured survivor is pulled from the icy harbour, she is identified as the mother of two-year-old Patricia Smeplass, who was kidnapped on her way home from kindergarten 10 years earlier and never found. Blix and Ramm join forces to investigate the unsolved case.

The first the police know of the crime is when clips are sent from the victim's Snapchat account, showing her begging for forgiveness. The CCTV at the cinema where she was working show her being dragged into the night by a masked killer. When the body is found, it is marked with a number 2...Detective Huldar joins the murder investigation, bringing child psychologist Freyja on board to help question the murdered teenager's friends. Soon, they uncover that Stella was far from the angel people claim: a relentless bully, she made life miserable for those around her.

A chilling note predicting the deaths of six people is found in a school's time capsule, 10 years after it was buried. But surely, if a 13-year-old wrote it, it can't be a real threat.... Detective Huldar suspects he's been given the investigation simply to keep him away from real police work. He turns to psychologist Freyja to help understand the child who hid the message. Soon, however, they find themselves at the heart of another shocking case.