In 1913, on a summer's day at Half Moon Lake, Louisiana, four-year-old Sonny Davenport walks into the woods and never returns. The boy's mysterious disappearance from the family's lake house makes front-page news in their home town of Opelousas. John Henry and Mary Davenport are wealthy and influential, and will do anything to find their son. For two years, the Davenports search across the South, offer increasingly large rewards, and struggle not to give in to despair.

Sisters Sarah and Chloe inherit a house they could never have previously dreamed of owning. It seems too good to be true. Shortly after they move in, however, the siblings start to notice strange things: horrible smells, sudden drops in temperature, as well as unexplainable sounds and feelings of being watched.

Taylor Smith hasn’t always had it easy, but she worked hard for her college scholarship and makes do with her job—all to avoid ending up like her parents. Claire, her roommate and best friend, is the exact opposite, rich beyond Taylor’s comprehension and maybe a little high maintenance. When a charming man named Dylan shows up at Taylor’s work and asks her out on a date, she is flustered, but flattered.

Twenty-five years ago, the body of 16-year-old Eve Knox was found in the caves near her home in small-town Grotto, Iowa - discovered by her best friend, Maggie, and her sister, Nola. There were a handful of suspects, including her boyfriend, Nick, but without sufficient evidence the case ultimately went cold.

Eighteen years ago, FBI Agent Darcy Hunt’s life changed forever when her little sister was abducted right under her nose—murdered by a crazed guild of misguided zealots.

Ignorant of civilization and cautioned against its evils, nineteen-year-old Wren and her two sisters, Sage and Evie, were raised in off-the-grid isolation in a primitive cabin in upstate New York. When the youngest grows gravely ill, their mother leaves with the child to get help from a nearby town. And they never return. As months pass, hope vanishes. Supplies are low. Livestock are dying.

Charlotte’s daughter Stella is sensitive and brilliant, perhaps even a genius, but a recent change in her behavior has alarmed her mother. Following the sudden death of Stella’s babysitter, Blanka, the once disruptive and anti-social child has become docile and agreeable. But what’s unsettling is that she has begun to mirror Blanka’s personality, from Blanka’s repetitive phrases to her accent, to fierce cravings for Armenian meat stew after being raised a vegetarian.

One day, a woman turns up in a remote coastal village. She's bought a crumbling, long-vacant cottage and calls herself Charlie Miller. Charlie keeps to herself, reluctant to integrate with the locals. If they ever find out who she really is, and what she's done, she'll lose what little she has left. Charlie served two years in prison for providing a false alibi for a murderer. It was the mistake of a woman in love, a woman who couldn't believe her boyfriend was guilty - or lying to her. All she desperately wants now is a fresh start.

Kit Darling is a maid with a snooping problem. She’s the “invisible girl,” compelled to poke into her wealthy clients’ closely guarded lives. It’s a harmless hobby until Kit sees something she can’t unsee in the home of her brand-new clients: a secret so dark it could destroy the privileged couple expecting their first child. This makes Kit dangerous to the couple. In turn, it makes the couple—who might kill to keep their secret—dangerous to Kit.

Psychiatrist Dr. Gwen Moore is an expert on killers. She’s spent a decade treating California’s most depraved predators and unlocking their motives - predators much like the notorious Bloody Heart serial killer, whose latest teenage victim escaped and then identified local high school teacher Randall Thompson as his captor. The case against Thompson as the Bloody Heart Killer is damning - and closed, as far as Gwen and the media are concerned. If not for one new development.

After surviving a terrible attack, Quinn Fleming has recovered in every way but one—her ability to retain new memories. Now, months later, it appears to the outside world as if the San Diego florist’s life is back to normal. But Quinn is barely holding on, relying on a notebook she carries with her at all times, a record of her entire existence since the assault. So when she witnesses a murder in the shadowy alley behind the florist shop, Quinn immediately writes down every terrifying detail of the incident before her amnesia wipes it away.

Summer has come to Atlantic City but the boardwalk is empty of tourists, the casino lights have dimmed, and two Jane Does are laid out in the marshland behind the Sunset Motel, just west of town. Only one person even knows they’re there. Meanwhile, Clara, a young boardwalk psychic, struggles to attract clients for the tarot readings that pay her rent. When she begins to experience very real and disturbing visions, she suspects they could be related to the recent cases of women gone missing in town.

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.

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.

On the night when Caitlin and Olivia's parents leave them to go to a dinner party both girls are full of excitement about being old enough to stay home alone. What they don't see is the figure watching them through the open window. Who, after the girls have fallen asleep, will turn the handle of the unlocked back door. When their parents return, they will find Olivia's bed empty. Their eldest daughter gone. Never to return. Until now. But is the woman who claims to be Olivia really all she seems? And is everything Caitlin said she saw that night really the whole truth?