In her bed at home in Bromma, Agnes wakes up with a jerk. Something has awakened her. Cautiously, she sneaks up to the window and peeks out from behind the curtain. The wind is blowing in the tree canopy outside the house and the darkness is compact. Suddenly something yellow gleams out from behind a little lilac bush. What is that? Agnes closes her eyes for a moment, then opens them again. The yellow light has gone.

Left with an estate on the brink of bankruptcy after their father's death, Lady Marigold Fairfax and her brother open a private investigation firm marketed to the elite . . . to spy on the elite. Dubbed The Imposters, Ltd., their anonymous group soon becomes the go-to for the crème of society when they want answers delivered surreptitiously. But the many secrets Marigold learns about her peers pale in comparison to her shock when she and her brother are hired to investigate her best friend's father as a potential traitor.

In 1942, Evie Farrow is used to life on Ocracoke Island, where every day is the same—until the German U-boats haunting their waters begin to wreak havoc. And when special agent Sterling Bertrand is washed ashore at Evie's inn, her life is turned upside down. While Sterling's injuries keep him inn-bound for weeks, making him even more anxious about the man he's tracking, he becomes increasingly intrigued by Evie, who seems to be hiding secrets of her own.

Meg and Sylvie Townsend manage the family bookshop and care for their father, Stephen, a veteran still suffering from his time as a POW during the Civil War. But then the Great Fire sweeps through Chicago's business district. The sisters become separated from their father and make a harrowing escape from the flames with the help of Chicago Tribune reporter Nate Pierce. Once the smoke clears away, they reunite with Stephen, only to learn soon after that their family friend was murdered on the night of the fire. Even more shocking, Stephen is charged with the crime....

Miss Gwendolyn Brinley accepted a temporary paid companion position for the Newport summer season, believing it would be a lark to spend the summer in America's most exclusive town. She suddenly finds her summer turning anything but amusing when her employer expects her to take over responsibilities as an assistant matchmaker. Tasked with the daunting prospect of attaining advantageous matches for her clients, Gwendolyn soon finds herself in the company of Mr. Walter Townsend, the catch of the Season, but a gentleman Gwendolyn finds beyond annoying.

In 1715, Lady Blythe Hedley's father is declared an enemy of the British crown because of his Jacobite sympathies, forcing her to flee her home in northern England. Secreted to the tower of Wedderburn Castle in Scotland, Lady Blythe awaits who will ultimately be crowned king. But in a house with seven sons and numerous servants, her presence soon becomes known.

Libby has been given a powerful gift: to live one life in 1774 colonial Williamsburg and the other in 1914 Gilded Age New York City. When she falls asleep in one life, she wakes up in the other without any time passing. She has one conscious mind but two very different lives and bodies.

Claire Powell’s life is turned upside down when her beloved husband admits to a “near affair.” But when Stephen accepts a partnership with an Atlanta law firm without consulting her and buys a historic Southern home sight-unseen―it pushes their already-fractured marriage to the breaking point. Claire’s world spirals, and she soon finds herself in a marriage she no longer wants, in a house she never asked for.

Patrick O'Neill survived a hardscrabble youth to become a lawyer for the downtrodden Irish immigrants in his community. He's proud of his work, even though he struggles to afford his ramshackle law office. All that changes when he accepts a case that is sure to emphasize the Blackstones' legacy of greed and corruption by resurrecting a 30-year-old mystery. Little does Patrick suspect that the Blackstones will launch their most sympathetic family member to derail him.

Cassandra Hale grew up knowing little about her parentage, and she had made peace with the fact that she never would. But her world shifts when a shocking deathbed confession reveals a two-year-old letter from Mr. Clark, the master of Briarton Park, with hints to her family's identity. Stung by betrayal, Cassandra travels to the village of Anston only to learn Mr. Clark has since passed away.

Beauty has been nothing but a curse to Penelope Snow. When she becomes a personal maid for a famous actress whose troupe is leaving Chicago to tour the West, she hides her figure beneath shapeless dresses and keeps her head down. But she still manages to attract the wrong attention, leaving her prospects in tatters—and her jealous mistress plotting her demise.

When their father's death leaves them impoverished, Sarah Summers and her genteel sisters fear they will be forced to sell the house and separate to earn livelihoods as governesses or companions. Determined to stay together, Sarah convinces them to open their seaside home to guests to make ends meet and provide for their ailing mother. Instead of the elderly invalids they expect to receive, however, they find themselves hosting eligible gentlemen. Sarah is soon torn between a growing attraction to a mysterious Scottish widower and duty to her family.

In the summer of 1933, a man named Adolf Hitler is the new and powerful anti-Semitic chancellor of Germany. But in Los Angeles, no-nonsense secretary Liesl Weiss has concerns much closer to home. The Great Depression is tightening its grip, and Liesl is the sole supporter of two children, an opinionated mother, and a troubled brother.

In 2012, art historian Gwen Morris travels to England's Lake District to appraise the paintings and antiques of an old family friend, hoping to prove herself to her prestigious grandfather. While at Longdale Manor, she meets David Bradford—the owner's handsome grandson—who is desperate to save the crumbling estate by turning it into a luxury hotel. When Gwen stumbles upon a one-hundred-year-old journal and an intricately carved shepherd's staff similar to one in a photo of her parents, she's left searching for answers.

In 1865, orphaned Daisy Francois takes a position as housemaid at a midwestern Wisconsin castle and finds that the reclusive and eccentric Gothic authoress inside hides more than the harrowing tales in her novels. With women disappearing from the area and a legend that seems to parallel these eerie circumstances, Daisy is thrust into a web that may threaten to steal her sanity, if not her life.

Elsa Reisner's lifelong dream of working as an ornithologist at the American Museum of Natural History is fading as the job begins to drain her passion. But fate takes an unexpected turn when she is assigned to catalog the bequest of a recently deceased patron whose Gothic country mansion holds secrets and treasures waiting to be discovered.

Beauty has been nothing but a curse to Penelope Snow. When she becomes a personal maid for a famous actress whose troupe is leaving Chicago to tour the West, she hides her figure beneath shapeless dresses and keeps her head down. But she still manages to attract the wrong attention, leaving her prospects in tatters—and her jealous mistress plotting her demise.

In the eyes of London Society, Gillian Phelps is suitable enough. Though the ton whispers about her change of residence, any speculation remains just that: ballroom gossip. No one—not even the other Huntresses, the group of ladies she calls her dearest friends—knows that she is harboring a devastating family secret. Gillian has become adept at hiding the reality of her circumstances, but the close quarters of a house party will test her ability to conceal the crushing truth. And with so many people to deceive, the late arrival of another guest is a most unwelcome surprise.

1956: In a quiet English village, the smoldering ruins of Rosemont Abbey have set the residents’ tongues wagging, and everyone is quick to accuse troublemaker Paul Everly of the crime of arson. Paul has vanished without a trace, leaving only his plucky twin sister, Louisa, certain of his innocence. Fueling her conviction is an inexplicable connection—she felt her twin’s death an hour before the abbey went up in flames.

When newcomer Mercy Windsor arrives in Mercy Peak in 1948 after a scandal shatters her gilded world as Hollywood's beloved leading lady, she is determined to forge a new life in obscurity in this time-forgotten Colorado haven. She purchases Wildwood—an abandoned estate with a haunting history—and begins to restore it to its former glory.