Iceland, 1934. Two boys playing see something they shouldn't have. The consequences will haunt them and their families for generations. Iceland, 2009. The credit crunch bites. The currency has been devalued, savings annihilated, lives ruined. Grassroots revolution is in the air, as is the feeling that someone ought to pay.... And in a country where everyone knows everybody, it isn't hard to draw up a list of exactly who is responsible. And then, one by one, to cross them off.

Over twenty years ago, the heiress Patricia Lockwood was abducted during a robbery of her family's estate, then locked inside an isolated cabin for months. Patricia escaped, but so did her captors - and the items stolen from her family were never recovered. Until now. On the Upper West Side, a recluse is found murdered in his penthouse apartment, alongside two objects of note: a stolen Vermeer painting and a leather suitcase bearing the initials WHL3. For the first time in years, the authorities have a lead - with the suitcase and painting both pointing them toward one man.

Adam and Sophie Warner and their three-year-old daughter are vacationing in Washington State’s Hood Canal for Memorial Day weekend. It’s the perfect getaway to unplug—and to calm an uneasy marriage. But on Adam’s first day out on the water, he sees Sophie abducted by a stranger. A hundred yards from shore, Adam can’t save her. And Sophie disappears.

Henry North is a down-on-his-luck cybersecurity expert from New Orleans. Adam Zhang is the cofounder of one of Austin’s most successful venture capitalist firms. These two men didn’t know each other. They had never met. Yet they died together, violently, in a place neither had any business being. When Henry doesn’t return from a business trip, his wife, Kirsten, panics - and then gets an anonymous phone call: “Your husband is dead in Austin.”

The decades-old disappearance of 21-year-old teaching student Deirdre Duncan is the holy grail for true crime buffs—and Skylar Brennan, the host of the Ugly Town podcast, is no exception. In fact, on the mean streets of the internet, he’s considered an expert on the case. But in law enforcement circles, he’s viewed as just another crackpot internet sleuth.

Jarvis Thompson, the most celebrated wide receiver in college football, vanishes along the Tennessee River in the middle of the night. The circumstances surrounding the receiver’s disappearance are ominous: drugs, cash, and his mentor’s brother lying in a pool of blood. It’s up to Jarvis’ mentor and soon-to-be agent Billy Beckett to investigate the mystery and find his beloved protégé before the clock runs out. Was it a brazen kidnapping? A setup? Or did Jarvis get in too deep and run?

Nestled high in the Tuscan hills lies Villa Volpone, home to renowned crime writer Jonah Moore and his creative writing course. It’s also the last place retired DCI Dan Armstrong expected to spend his retirement! Dan’s no writer, but maybe this break will help him to think about the next chapter in his own life story? But only days into the course, Jonah Moore is found stabbed to death with his award-winning silver dagger! And Dan finds himself pulled out of retirement with a killer to catch.

A man is found dead on a beach on a small island off the coast of Germany. The gruesome discovery rocks the close-knit community of Amrum: in a town where nothing stays secret for long, who among them has a motive for murder? DI Lena Lorenzen is brought in to investigate. For her, it is an unwelcome homecoming to the isolated island she turned her back on fourteen years ago. But now her past - and the island’s - is catching up with her.

Driven by his tragic past, prosecutor Chance Meridian seeks justice for a beautiful woman brutally murdered in her own home. Except nothing comes easy in Atlanta, and certainly not justice. A lot of people in town wanted Sara Barton dead, and every single one of them is lying about something. Chance shouldn't be surprised. Murder is an ugly business. But so is love.

When Anna Crowe is killed in her sleep alongside her children, the quiet local community of Corbally is shocked. It’s also a chilling reminder of when her sister, Janey, disappeared as a baby, 29 years ago, never to be seen again. Detective Iris Locke is assigned to the case, and, after a year undercover which ended in failure when her cover got blown, she’s desperate to make her mark - and to live up to the reputation of her ex-cop father, the former head of the Limerick Murder Squad.

Blake Wilder is plagued with nightmares from her dark and twisted past. Fourteen years ago, her entire family was taken from her. Her parents murdered and her sister taken. At the age of 22, Blake joined the FBI in hopes of one day discovering the truth behind the mysteries of her own past.

Eric Swan can be killed - but he can never die. For a government agent hunting the most dangerous domestic terrorists, that comes in handy. But Swan is beginning to question his own humanity. Is technology turning this Q2 secret agent into a monster himself? Now villainous brother-sister twins, fueled by a lust for power and revenge, have set their sights on taking down the power grid. And they’ve hired an army of mercenaries to protect them.

When her dreams of rising through the Accra police ranks like her late father crash around her, 26-year-old Emma Djan is unsure what will become of her career. Through a sympathetic former colleague, Emma gets an interview with a private detective agency that takes on cases of missing persons, theft, and infidelity. Meanwhile, Gordon Tilson, a middle-aged widower in Washington, DC, has found solace in an online community after his wife's passing. Through the support group, he's even met a young Ghanaian widow he's come to care about.

Elle Castillo once trained as a social worker, supporting young victims of violent crime. Now, she hosts a popular true crime podcast that focuses on cold cases of missing and abducted children. After four seasons of successfully solving these cases in Minnesota’s Twin Cities, Elle decides to tackle her white whale: The Countdown Killer. Twenty years ago, TCK was terrorizing the community, kidnapping and ritualistically murdering three girls over seven days, each a year younger than the last.

The rugged landscape of Sequoia National Park is a challenge on the best of days - but when a park ranger discovers an abandoned exclusive campsite with an empty tent and high-end technical gear scattered on the shores of an alpine lake, the wilderness takes on a sinister new hue. Thirty-two-year-old Felicity Harland - a former FBI agent who left the service in the wake of a personal tragedy and has taken her skills off the grid - is brought in as chief investigator.