Carl Mørck used to be one of Denmark’s best homicide detectives. Then a hail of bullets destroyed the lives of two fellow cops, and Carl - who didn’t draw his weapon - blames himself. So a promotion is the last thing he expects. But Department Q is a department of one, and Carl’s got only a stack of cold cases for company. His colleagues snicker, but Carl may have the last laugh, because one file keeps nagging at him: A liberal politician vanished five years earlier and is presumed dead. But she isn’t dead...yet.

A frozen body is discovered in the icy depths of Langjökull glacier, apparently that of a businessman who disappeared 30 years before. At the time, an extensive search and police investigation yielded no results - one of the missing man’s business associates was briefly held in custody, but there wasn’t enough evidence to charge him.

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 story opens with the apparently accidental drowning of a sixth form student in the Norfolk countryside. As a matter of routine, or so it seems, the case passes across the desk of Detective Sergeant Smith, recently returned to work after an internal investigation into another case that has led to tensions between officers at Kings Lake police headquarters. As an ex-DCI, Smith could have retired by now, and it is clear that some of his superiors wish that he would do so.

A 90-year-old man is found dead in his bed, smothered with his own pillow. On his desk, the police find newspaper cuttings about a murder case dating from the Second World War, when a young woman was found strangled behind Reykjavik's National Theatre. Konrad, a former detective, is bored with retirement and remembers the crime. He grew up in "the shadow district", a rough neighborhood bordered by the National Theatre. Why would someone be interested in that crime now?

Detective Sergeant Chris Waters got the call at 05.29 that July morning. This is it, said DCI Reeve, you'll be first there, it's all yours, you're the crime scene manager. Suddenly, after months of waiting and wondering, Waters finds himself in at the deep end, and alone at the scene of a puzzling murder. As the investigation proceeds, the detectives at Kings Lake Central find themselves visiting familiar places and talking to some familiar faces, while old enmities reappear in the incident room. Before this is over, Chris Waters will need to make a career-changing decision.

Oslo, 2018. Former long-distance runner Sonja Nordstrøm never shows at the launch of her controversial autobiography, Always Number One. When celebrity blogger Emma Ramm visits Nordstrøm’s home later that day, she finds the door unlocked and signs of a struggle inside. A bib with the number one has been pinned to the TV. Police officer Alexander Blix is appointed to head up the missing-persons investigation, but he still bears the emotional scars of a hostage situation 19 years earlier, when he killed the father of a five-year-old girl.

Harriet Vanger, a scion of one of Sweden's wealthiest families disappeared over forty years ago. All these years later, her aged uncle continues to seek the truth. He hires Mikael Blomkvist, a crusading journalist recently trapped by a libel conviction, to investigate. He is aided by the pierced and tattooed punk prodigy Lisbeth Salander. Together they tap into a vein of unfathomable iniquity and astonishing corruption.

Returning to her hometown after the funeral of her parents, writer Erica Falck finds a community on the brink of tragedy. The death of her childhood friend, Alex, is just the beginning. Her wrists slashed, her body frozen in an ice cold bath, it seems that she has taken her own life. Erica conceives a memoir about the beautiful but remote Alex, one that will answer questions about their lost friendship. While her interest grows to an obsession, local detective Patrik Hedstrom is following his own suspicions about the case.

Who hasn’t wondered for a split second what the world would be like if a person who is the object of your affliction ceased to exist? But then you’ve probably never heard of The McMasters Conservatory, dedicated to the consummate execution of the homicidal arts. To gain admission, a student must have an ethical reason for erasing someone who deeply deserves a fate no worse (nor better) than death. The campus of this “Poison Ivy League” college—its location unknown to even those who study there—is where you might find yourself the practice target of a classmate.

Into Keldale's pastoral web of old houses and older secrets comes Scotland Yard Inspector Thomas Lynley, the eighth earl of Asherton. Along with the redoubtable Detective Sergeant Barbara Havers, Lynley has been sent to solve a savage murder that has stunned the peaceful countryside. For fat, unlovely Roberta Teys has been found in her best dress, an ax in her lap, seated in the old stone barn beside her father's headless corpse. Her first and last words were "I did it. And I'm not sorry".

Hans Olofson arrives in Zambia not long after independence, hoping to fulfill the missionary dream of his friend Janice. He is also fleeing the traumas of his motherless childhood: his father's alcoholism, his best friend's terrible accident, Janice's death, his fear of an ordinary and stifled fate. Africa is a terrible shock, yet he stays and makes it his home. But he never fully comes to understand his place as a mzungu, a wealthy white man among native blacks, and the fragile truce between them.

Yasuko Hanaoka is a divorced, single mother who thought she had finally escaped her abusive ex-husband Togashi. When he shows up one day to extort money from her, threatening both her and her teenaged daughter Misato, the situation quickly escalates into violence and Togashi ends up dead on her apartment floor.

A small-time drug dealer is found battered to death on the outskirts of the Norwegian capital, Oslo. A young Dutchman, walking aimlessly in central Oslo covered in blood, is taken into custody but refuses to talk. When he is informed that the woman who discovered the body, Karen Borg, is a lawyer, he demands her as his defender, although her specialty is civil, not criminal, law. The young man is adamant: he will speak to Karen Borg, and to her alone.

Melchor, the son of a prostitute, went to prison as a teenager, convicted of working for a Colombian drug cartel. Behind bars, he read a book that changed his life: Les Misérables. Then his mother was murdered. He decided to become a cop. This new case, in Terra Alta, a remote region of rural Catalonia—the murder of a wealthy local man and his wife—will turn Melchor’s life upside down yet again.