Ada Sibelius is raised by David, a single father and head of a computer science lab in Boston. Homeschooled, she accompanies her loving father - brilliant, eccentric, socially inept - to work every day. By 12 she is a painfully shy prodigy. At the same time that the lab begins to gain acclaim, David's mind begins to falter, and his mysterious past comes into question. When her father moves into a nursing home, Ada is taken in by one of David's colleagues. She embarks on a mission to uncover her father's secrets.

It’s a beautiful day in Newport, Rhode Island, when Phoebe Stone arrives at the grand Cornwall Inn wearing a green dress and gold heels, not a bag in sight, alone. She's immediately mistaken by everyone in the lobby for one of the wedding people, but she’s actually the only guest at the Cornwall who isn’t here for the big event. Phoebe is here because she’s dreamed of coming for years—she hoped to shuck oysters and take sunset sails with her husband, only now she’s here without him, at rock bottom, and determined to have one last decadent splurge on herself.

In a Philadelphia neighborhood rocked by the opioid crisis, two once-inseparable sisters find themselves at odds. One, Kacey, lives on the streets in the vise of addiction. The other, Mickey, walks those same blocks on her police beat. They don't speak anymore, but Mickey never stops worrying about her sibling. Then Kacey disappears, suddenly, at the same time that a mysterious string of murders begins in Mickey's district, and Mickey becomes dangerously obsessed with finding the culprit - and her sister - before it's too late.

Beth and her gentle, kind husband Frank are happily married, but their relationship relies on the past staying buried. But when Beth’s brother-in-law shoots a dog going after their sheep, Beth doesn’t realize that the gunshot will alter the course of their lives. For the dog belonged to none other than Gabriel Wolfe, the man Beth loved as a teenager—the man who broke her heart years ago. Gabriel has returned to the village with his young son Leo, a boy who reminds Beth very much of her own son, who died in a tragic accident.

Growing up Black in rural North Carolina, Ray McMillian’s life is already mapped out. But Ray has a gift and a dream—he’s determined to become a world-class professional violinist, and nothing will stand in his way. Not his mother, who wants him to stop making such a racket; not the fact that he can’t afford a violin suitable to his talents; not even the racism inherent in the world of classical music.

Celebrating her forty-fifth birthday at her local pub, popular podcaster Alix Summer crosses paths with an unassuming woman called Josie Fair. Josie, it turns out, is also celebrating her forty-fifth birthday. They are, in fact, birthday twins. A few days later, Alix and Josie bump into each other again, this time outside Alix’s children’s school. Josie has been listening to Alix’s podcasts and thinks she might be an interesting subject for her series. She is, she tells Alix, on the cusp of great changes in her life.

Bold and fearless, Nina Markova always dreamed of flying. When the Nazis attack the Soviet Union, she risks everything to join the legendary Night Witches, an all-female night bomber regiment wreaking havoc on the invading Germans. When she is stranded behind enemy lines, Nina becomes the prey of a lethal Nazi murderess known as the Huntress, and only Nina's bravery and cunning will keep her alive.

1975 is a time of change in America. The Vietnam War is ending. Muhammad Ali is fighting Joe Frazier. And in the smalltown of Monta Clare, Missouri, girls are disappearing. When the daughter of a wealthy family is targeted, the most unlikely hero emerges—Patch, a local boy, who saves the girl, and, in doing so, leaves heartache in his wake. Patch and those who love him soon discover that the line between triumph and tragedy has never been finer. And that their search for answers will lead them to truths that could mean losing one another.

After Lucy is found wandering the streets, covered in her best friend Savvy’s blood, everyone thinks she is a murderer. Lucy and Savvy were the golden girls of their small Texas town: pretty, smart, and enviable. Lucy married a dream guy with a big ring and an even bigger new home. Savvy was the social butterfly loved by all, and if you believe the rumors, especially popular with the men in town. It’s been years since that horrible night, a night Lucy can’t remember anything about, and she has since moved to LA and started a new life.

Maine, 1789: When the Kennebec River freezes, entombing a man in the ice, Martha Ballard is summoned to examine the body and determine cause of death. As a midwife and healer, she is privy to much of what goes on behind closed doors in Hallowell. Her diary is a record of every birth and death, crime and debacle that unfolds in the close-knit community. Months earlier, Martha documented the details of an alleged rape committed by two of the town’s most respected gentlemen—one of whom has now been found dead in the ice.

Lee Gulliver never thought she’d find herself living on the streets—no one ever does—but when her restaurant fails, and she falls deeper into debt, she leaves her old life behind with nothing but her clothes and her Toyota Corolla. In Seattle, she parks in a secluded spot by the beach to lay low and plan her next move—until early one morning, she sees a sobbing woman throw herself into the ocean. Lee hauls the woman back to the surface, but instead of appreciation, she is met with fury.

Rachel is a student working at a bookstore when she meets James, and it’s love at first sight. Effervescent and insistently heterosexual, James soon invites Rachel to be his roommate and the two begin a friendship that changes the course of both their lives forever. Together, they run riot through the streets of Cork city, trying to maintain a bohemian existence while the threat of the financial crash looms before them.

Greta lives with her friend Sabine in an ancient Dutch farmhouse in Hudson, New York. The house is unrenovated, uninsulated, and full of bees. Greta spends her days transcribing therapy sessions for a sex coach who calls himself Om. She becomes infatuated with his newest client, a repressed married woman she affectionately refers to as Big Swiss.

It’s been a decade since Trumanell Branson disappeared, leaving only a bloody handprint behind. Her pretty face still hangs like a watchful queen on the posters on the walls of the town’s Baptist church, the police station, and in the high school. They all promise the same thing: We will find you. Meanwhile, Tru's brother, Wyatt, lives as a pariah in the desolation of the old family house, cleared of wrongdoing by the police but tried and sentenced in the court of public opinion and in a new documentary about the crime.

One summer morning, twelve-year-old Edward Adler, his beloved older brother, his parents, and 183 other passengers board a flight in Newark headed for Los Angeles. Among them are a Wall Street wunderkind, a young woman coming to terms with an unexpected pregnancy, an injured veteran returning from Afghanistan, a business tycoon, and a free-spirited woman running away from her controlling husband. Halfway across the country, the plane crashes. Edward is the sole survivor.

Dr. Margaret Richter has it all. She’s rich, thanks to her best-selling self-help books. She has a beautiful home in Cape Cod overlooking the beach. And she has a monthly book club that everyone is dying to get invited to. Literally. Because behind the crystal wine glasses, the fine linens and the catered hors d'oeuvres lies a tangled web of secrets, of deceit, of murder. No member of the book club is innocent—and many are guilty. And the person with the most to hide is Margaret Richter herself.

Lana Fleming’s sister has vanished from the set of TV’s hottest show, and no one seems to care. Desperate for answers, Lana sneaks in as an extra, only to get stranded with Griffin Hart, an A-list action star with a reputation for good abs and bad decisions. Though Griffin didn’t expect to be cast as a librarian’s sidekick in a real-life thriller, he’s weirdly into it—and into her. Even more unsettling—she sees right through his playboy persona. But their meet-cute soon turns deadly when they uncover a Hollywood scandal for the ages.

Sometimes the darkest mysteries are homegrown. When Zephyr Nelson returns home to look after her ailing mother, she discovers that her younger brother, Cotter, has become obsessed with a malevolent influencer on a mysterious voice app. Just as a series of puzzling deaths begin plaguing their small town of Sugarland. With the help of her college best friend and occasional lover, Teddy, Zephyr unravels truths about Sugarland that are impossible for her to accept ...

Timothy and Jonah, wealthy entrepreneurs with a spoiled son, hide sins from their past—one involving a death on a cruise, the other a crime in Bali. Nathan and Samantha, the hot ex-nanny turned trophy wife, grapple with infertility and a shocking paternity secret. Bartosz and Angelika (he’s a chef, she’s a former sex worker) carry debts to the other couples they don’t even realize they owe. Over fourteen days, the couples bond—but their pasts are too deeply intertwined to stay hidden. The sly concierge, Putu, knows more than he lets on.

Amy Nicols (Lizzy Caplan) was an FBI agent with a dogged need to protect everyone—until that instinct caused her to mishandle a crisis, lose innocent lives, and lose her job. Now a civilian working in private security, that mistake still haunts her. One morning on the commuter train, she overhears a young couple plotting a murder. Ignoring warnings from her family and friends, Amy’s instinct to protect and serve compels her to investigate. But the further she goes, the more she finds her own life in danger.

Nathan Tyler is an unassuming professor at a middling American university with a rather obscure specialty in mathematics—in short, a nobody from nowhere. So why is the White House calling? Summoned to Washington, DC, for a top-secret briefing, Nathan discovers that he’s the key to a massive foreign intelligence breakthrough. Reading between the lines of a cryptic series of equations, he could open a door straight into the heart of the Kremlin and change the global balance of power forever.

Cassie thinks she has met the perfect man. Joel is sweet, handsome, romantic, and best of all, he’s crazy about Cassie. She thinks she’s found the guy she’ll spend the rest of her life with. Have children with. Grow old with. Yes, she knows about his perfect ex-girlfriend, Francesca. The beautiful, brilliant chef, beloved by all his friends. But she thinks Francesca is out of the picture. She thinks Francesca is gone for good. Think again, Cassie.

On the Yorkshire moors, celebrated author Faye Mathis is coming to terms with her early-onset dementia. She has begun writing her memoir, committing her past to paper before her memory betrays her. But her family history is full of gaps, bloodlines cut short, family ties all ending in knots. When a picture of Faye – dirty and dishevelled, stumbling alone on the moors – goes viral, her life is thrown into chaos. Faye is convinced she is not that person in the photograph. But how can she be sure?

Life’s not going well for forty-year-old Abby. When her beautiful and charismatic best friend dies suddenly, she’s left reeling. Hetty’s always been such a dominant force in her life; now Abby must figure out who she is – and who she wants to be – without Hetty by her side. Abby has always been the odd one out in Hetty’s wealthy, privileged friendship group. Despite their differences, Abby has managed to carve out a place for herself. But Hetty isn’t an easy friend to have. She blows hot and cold, alternating between fierce loyalty and unwarranted cruelty.

Sloan will go through hell and back for those she loves. And she does so, every single day. Caught up with the alluring Asa Jackson, a notorious drug trafficker, Sloan has finally found a lifeline to cling to, even if it’s meant compromising her morals. She was in dire straits trying to pay for her brother’s care until she met Asa. But as Sloan became emotionally and economically reliant on him, he in turn developed a disturbing obsession with her—one that becomes increasingly dangerous every day.

1975 is a time of change in America. The Vietnam War is ending. Muhammad Ali is fighting Joe Frazier. And in the smalltown of Monta Clare, Missouri, girls are disappearing. When the daughter of a wealthy family is targeted, the most unlikely hero emerges—Patch, a local boy, who saves the girl, and, in doing so, leaves heartache in his wake. Patch and those who love him soon discover that the line between triumph and tragedy has never been finer. And that their search for answers will lead them to truths that could mean losing one another.

Maine, 1789: When the Kennebec River freezes, entombing a man in the ice, Martha Ballard is summoned to examine the body and determine cause of death. As a midwife and healer, she is privy to much of what goes on behind closed doors in Hallowell. Her diary is a record of every birth and death, crime and debacle that unfolds in the close-knit community. Months earlier, Martha documented the details of an alleged rape committed by two of the town’s most respected gentlemen—one of whom has now been found dead in the ice.

It’s a beautiful day in Newport, Rhode Island, when Phoebe Stone arrives at the grand Cornwall Inn wearing a green dress and gold heels, not a bag in sight, alone. She's immediately mistaken by everyone in the lobby for one of the wedding people, but she’s actually the only guest at the Cornwall who isn’t here for the big event. Phoebe is here because she’s dreamed of coming for years—she hoped to shuck oysters and take sunset sails with her husband, only now she’s here without him, at rock bottom, and determined to have one last decadent splurge on herself.

Ada Sibelius is raised by David, a single father and head of a computer science lab in Boston. Homeschooled, she accompanies her loving father - brilliant, eccentric, socially inept - to work every day. By 12 she is a painfully shy prodigy. At the same time that the lab begins to gain acclaim, David's mind begins to falter, and his mysterious past comes into question. When her father moves into a nursing home, Ada is taken in by one of David's colleagues. She embarks on a mission to uncover her father's secrets.

Flight attendant Allegra Patel loves her job, but today is her twenty-eighth birthday and she’d rather not be placating a plane full of passengers unhappy about a long delay. There’s the well-dressed man in seat 4C desperate not to miss his daughter’s musical. A harried mother frantically tries to keep her toddler and baby quiet. Honeymooners still in their wedding finery dream of their new lives, while a chatty emergency room nurse dreams of retirement.

After Lucy is found wandering the streets, covered in her best friend Savvy’s blood, everyone thinks she is a murderer. Lucy and Savvy were the golden girls of their small Texas town: pretty, smart, and enviable. Lucy married a dream guy with a big ring and an even bigger new home. Savvy was the social butterfly loved by all, and if you believe the rumors, especially popular with the men in town. It’s been years since that horrible night, a night Lucy can’t remember anything about, and she has since moved to LA and started a new life.

When the enslaved Jim overhears that he is about to be sold to a man in New Orleans, separated from his wife and daughter forever, he decides to hide on nearby Jackson Island until he can formulate a plan. Meanwhile, Huck Finn has faked his own death to escape his violent father, recently returned to town. As all readers of American literature know, thus begins the dangerous and transcendent journey by raft down the Mississippi River toward the elusive and too-often-unreliable promise of the Free States and beyond.

In a Philadelphia neighborhood rocked by the opioid crisis, two once-inseparable sisters find themselves at odds. One, Kacey, lives on the streets in the vise of addiction. The other, Mickey, walks those same blocks on her police beat. They don't speak anymore, but Mickey never stops worrying about her sibling. Then Kacey disappears, suddenly, at the same time that a mysterious string of murders begins in Mickey's district, and Mickey becomes dangerously obsessed with finding the culprit - and her sister - before it's too late.

Beth and her gentle, kind husband Frank are happily married, but their relationship relies on the past staying buried. But when Beth’s brother-in-law shoots a dog going after their sheep, Beth doesn’t realize that the gunshot will alter the course of their lives. For the dog belonged to none other than Gabriel Wolfe, the man Beth loved as a teenager—the man who broke her heart years ago. Gabriel has returned to the village with his young son Leo, a boy who reminds Beth very much of her own son, who died in a tragic accident.

Washington, DC, 1950. Everyone keeps to themselves at Briarwood House, a down-at-the-heels all-female boardinghouse in the heart of the nation’s capital where secrets hide behind white picket fences. But when the lovely, mysterious widow Grace March moves into the attic room, she draws her oddball collection of neighbors into unlikely friendship. Grace’s weekly attic-room dinner parties and window-brewed sun tea become a healing balm on all their lives, but she hides a terrible secret of her own.

The identity comes first: Evie Porter. Once she’s given a name and location by her mysterious boss, Mr. Smith, she learns everything there is to know about the town and the people in it. Then the mark: Ryan Sumner. The last piece of the puzzle is the job. Evie isn’t privy to Mr. Smith’s real identity, but she knows this job isn't like the others. Ryan has gotten under her skin, and she’s starting to envision a different sort of life for herself. But Evie can’t make any mistakes—especially after what happened last time.

Celebrating her forty-fifth birthday at her local pub, popular podcaster Alix Summer crosses paths with an unassuming woman called Josie Fair. Josie, it turns out, is also celebrating her forty-fifth birthday. They are, in fact, birthday twins. A few days later, Alix and Josie bump into each other again, this time outside Alix’s children’s school. Josie has been listening to Alix’s podcasts and thinks she might be an interesting subject for her series. She is, she tells Alix, on the cusp of great changes in her life.

After Tova Sullivan’s husband died, she began working the night shift at the Sowell Bay Aquarium, mopping floors and tidying up. Keeping busy has always helped her cope, which she’s been doing since her eighteen-year-old son, Erik, mysteriously vanished on a boat in Puget Sound over thirty years ago. Tova becomes acquainted with curmudgeonly Marcellus, a giant Pacific octopus living at the aquarium. Marcellus knows more than anyone can imagine but wouldn’t dream of lifting one of his eight arms for his human captors—until he forms a remarkable friendship with Tova.

In the rugged Pacific Northwest lies the Olympic National Forest - nearly a million acres of impenetrable darkness and impossible beauty. From deep within this old growth forest, a six-year-old girl appears. Speechless and alone, she offers no clue as to her identity, no hint of her past.