Sam Easton—a true survivor—is home from Afghanistan, trying to rebuild a life in his hometown of LA. Separated from his wife, bartending and therapy sessions are what occupy his days and nights. When friend and colleague Melody Traeger is beaten by her boyfriend, she turns to Sam for help. When the boyfriend turns up dead the next day, a hard case like Sam is the perfect suspect.

Grace Holloway keeps to herself. Since narrowly escaping death at the hands of the man who kidnapped her, she’s thrown herself into the small inn she runs in Rock Harbor, Maine. It’s quiet, quaint and, in the off-season, completely isolated—the perfect place for Grace to keep her own secrets. But Grace isn’t the only one with something to hide, and Rock Harbor isn’t just a sleepy vacation town. Someone is taking young women—girls who look an awful lot like Grace did when she was kidnapped so many years ago.

Two brothers meet at the remote fence line separating their cattle ranches in the lonely outback. In an isolated belt of Western Australia, they are each other’s nearest neighbor, their homes a four-hour drive apart. The third brother lies dead at their feet. Something caused Cam, the middle child who had been in charge of the family homestead, to die alone in the middle of nowhere. So the eldest brother returns with his younger sibling to the family property and those left behind. But the fragile balance of the ranch is threatened.

In a residential Washington, D.C., neighborhood, a young woman's body is found in the basement of an abandoned house - starved to death in a cage, along with the video footage of a dark and deadly ritual. The victim is identified as the daughter of a prominent D.C. politician, and it falls to the FBI to track down the unconscionable psychopath who murdered her. FBI special agent Sayer Altair would rather conduct research on criminality than catch actual criminals. But when she's offered a promotion hinging on her next assignment, she reluctantly accepts the "Cage Killer" case.

The last time PI Blaze McClintock was on her family’s ranch, she left in handcuffs. She vowed then to never go home again...until her estranged father is accused of murder. He’s not a good man - this entire Montana town knows that. But Blaze believes her father is innocent, and she’ll do anything to prove it, even ask the one man who broke her heart for help - the only man in town who’s on her side.

D.I. Duncan McAdam is dispatched home to the Misty Isle. A body has been found buried in a remote location on the Waternish peninsula. Well-preserved in the peat, Isla Matheson—missing for the better part of two decades—is revealed to a shocked island community. A teenage runaway is dead...and no one is talking.

Grant McAllister, a professor of mathematics, once sat down and worked all the rules out – and wrote seven perfect detective stories to demonstrate. But that was 30 years ago. Now Grant lives in seclusion on a remote Mediterranean island, counting the rest of his days. Until Julia Hart, a brilliant, ambitious editor knocks on his door. Julia wishes to republish his book, and together they must revisit those old stories: An author hiding from his past and an editor keen to understand it.

Kieran Elliott’s life changed forever on a single day when a reckless mistake led to devastating consequences. The guilt that still haunts him resurfaces during a visit with his young family to the small coastal town he once called home. Twelve years earlier the storm of the century claimed the lives of Kieran’s brother and his friend. There was also a third casualty that day. A teenage girl, last spotted on the sand as the weather rolled in, then never seen again. Kieran has barely arrived back in town after a long absence when a body is washed up on the nearby beach.

Flynn was only a teenager when her parents were killed in a terrible accident. Too young to lose her parents, too young to take on responsibility for her younger sister Kaiya, too young to protect Kaiya from the harshness of their new lives in the following years. Desperate to help her sister, Flynn reaches out to Willa Tomlinson, a grief counsellor renowned for helping her patients cope with profound loss. Under Willa’s influence and care, Kaiya finally seems to turn a corner, joining the climate action collective that Willa leads.

Vivvy Bouchet, daughter of a known psychic, was ten when she saved a boy’s life by making an impossible prediction. Now she’s an astrophysicist in Texas, devoted to science, but the boy she saved has become a cop who continues to believe she can see things no one else can. When he begs for help on the high-profile cold case of a kidnapped girl, Vivvy steps back into the ocean of voices that once nearly drowned her.

As Paris rediscovers its joie de vivre, Tabitha Knight, recently arrived from Detroit for an extended stay with her French grandfather, is on her own journey of discovery. Thanks to her neighbor and friend Julia Child, another ex-pat who's fallen head over heels for Paris, Tabitha is learning how to cook for her Grandpere and Oncle Rafe and Tabitha's sojourn is proving thoroughly delightful. That is, until the cold December day they return to Julia's building and learn that a body has been found in the cellar.

When a 15-year-old girl fails to make it home after school, DI Heather Filson believes she’s dealing with just another teenage runaway. The girl’s grandfather, a notorious Glasgow gangster, disagrees. Convinced one of his underworld enemies has grabbed her, he’s prepared to bathe the city in blood in order to bring his princess home.

Magnus "Steps" Craig is part of the elite three-man Special Tracking Unit of the FBI. Called in on special cases where his skills are particularly needed, he works as a tracker. The media dubs him "The Human Bloodhound", since Steps is renowned for his incredible ability to find and follow trails over any surface better than anyone else. But there's a secret to his success. Steps has a special ability - a kind of synesthesia - where he can see the "essence" of a person, something he calls "shine", on everything they've touched.

Frankie Elkin is an average middle-aged woman, a recovering alcoholic with more regrets than belongings. But she spends her life doing what no one else will - searching for missing people the world has stopped looking for. When the police have given up, when the public no longer remembers, when the media has never paid attention, Frankie starts looking. A new case brings her to Mattapan, a Boston neighborhood with a rough reputation. She is searching for Angelique Badeau, a Haitian teenager who vanished from her high school months earlier.

Owen Pick’s life is falling apart. In his 30s and living in his aunt’s spare bedroom, he has just been suspended from his job as a teacher after accusations of sexual misconduct - accusations he strongly denies. Searching for professional advice online, he is inadvertently sucked into the dark world of incel forums, where he meets a charismatic and mysterious figure. Across the street from Owen lives the Fours family, headed by mom Cate, a physiotherapist, and dad Roan, a child psychologist. But the Fours family have a bad feeling about their neighbor Owen.