Frances Wynn, the American-born Countess of Harleigh, enjoys more freedom as a widow than she did as a wife. After an obligatory year spent mourning her philandering husband, Reggie, she puts aside her drab black gowns, leaving the countryside and her money-grubbing in-laws behind. With her young daughter in tow, Frances rents a home in Belgravia and prepares to welcome her sister, Lily, arriving from New York - for her first London season.

1813. Lizzie's beloved older sister Esme is sold in marriage to the ageing Lord Blountford to settle their father's debts. One year later, Esme is dead, and Lizzie is sent to take her place as Lord Blountford's next wife. Arriving at Ambletye Manor, Lizzie uncovers a twisted web of secrets, not least that she is to be the fifth mistress of this house. Marisa. Anne. Pansy. Esme. What happened to the four wives who came before her? In possession of a unique gift, only Lizzie can hear their stories, and try to find a way to save herself from sharing the same fate.

The Earl of Wrexford possesses a brilliant scientific mind, but boredom and pride lead him to reckless behavior. He does not suffer fools gladly. So when pompous, pious Reverend Josiah Holworthy publicly condemns him for debauchery, Wrexford unsheathes his rapier-sharp wit and strikes back. As their war of words escalates, London's most popular satirical cartoonist, A. J. Quill, skewers them both.

1939: On the eve of war, young English heiress Grace Grey travels from London to the wilderness of Tasmania. Coaxed out of her shell by the attentions of her Irish neighbour, Daniel - Grace finally learns to live. 1975: Artist Willow Hawkins, and her new husband, Ben, can't believe their luck when an anonymous benefactor leaves them a house on the remote Tasmanian coast. 2004: Libby Andrews has always been sheltered from the truth behind her father Ben's death.

London 1815. Newly widowed Lily Adler is returning to a society that frowns on independent women. At a ball thrown by her oldest friend, Lady Walter, she expects the scandal, gossip, and secrets. What she doesn't expect is the dead body in Lady Walter's garden. Lily overheard the man just minutes before he was shot: young, desperate, and attempting blackmail. But she's willing to leave the matter to the local constables - until Lord Walter bribes the investigating magistrate to drop the case. Stunned, Lily realizes she's the only one with the key to catching the killer.

1933. Hannah Snow is fleeing her unhappy marriage to an MP when she finds herself in a small hotel on the banks of Loch Ness. But when a monster is spotted in the depths of the waters, the press descends – and Hannah finds her hiding place is discovered. Someone has been looking for Hannah, and when they find her events will take a devastating turn. Present day. True crime podcaster Scarlett finds herself intrigued by the mystery of Hannah Snow, wife of a promising government minister who disappeared in 1933 – just months before her husband also went missing, presumed dead.

1940: In south-west Ireland, the young and beautiful Lady Charlotte Rathmore is pronounced dead after she disappears by the lake of Blackwater Hall. In London, on the brink of the Blitz, Nancy Rathmore is grieving Charlotte's death when a letter arrives containing a secret that she is sworn to keep. 2019: Ellie Fitzgerald is forced to leave Dublin disgraced and heartbroken. Abandoning journalism, she returns to rural Kerry to weather out the storm. But, when she discovers a faded letter, tucked inside the pages of an old book, she finds herself drawn in by a long-buried secret.

Shunned by a society that puts attractiveness above all else, Lady Eliza Darby’s wallflower status keeps her from getting the one thing she wants most, namely, to be a mother. But, when her scorned older sister returns home to see all of her sisters wed in happy matches, it may be Eliza’s only chance to secure a husband and have the children she so desires. Jilted in a publicly humiliating display, Dax Kane, the Duke of Ashbourne, has sworn off love forever. But, when the title demands it, he selects the most perfect candidate for the position: Lady Eliza Darby.

In Victorian London, Genevieve Timmons poses as a spiritualist to swindle wealthy mourners—until one misstep lands her in a jail cell awaiting the noose. Then a stranger arrives to make her a peculiar offer. The lord he serves, Mr. Pemberton, has been inconsolable since the tragic death of his beautiful bride-to-be. If Genevieve can perform a séance persuasive enough to bring the young lord peace, she will win her freedom.

England, 1865: Newspaper columnist Lady Katherine Bascomb finds herself the subject of speculation when her latest article leads to an arrest in the murders plaguing London. The English believe women ought not to write about such vulgar things as crime, and a particularly attractive detective inspector is incensed that she's interfered with his investigation. To escape her sudden notoriety, Katherine heads to the country - only to witness a murder upon her arrival.

When Nicole Rayburn travels to Lockwood Hall and begins to research Alys’s story for a new book, she discovers startling irregularities in Alys’s case. Nicole’s suspicions mount as every answer leads to more questions. What really happened to Alys? And what became of her son, who disappeared the day she was hanged? Could it be that Alys’s death was the result of a well-planned conspiracy, or is there another, less obvious answer? And who is trying to sabotage Nicole's efforts by stealing her work?

At the end of his Grand Tour, somewhere between Athens and Constantinople, Christian Selwyn, the young Earl of Hazelmere, vanished—seemingly without trace. Time passes. In London, his uncle and cousin move into his home, while his unofficial fiancée, Sophia, is left desolate and in limbo.

Librarian Sylvia Ashe knows nothing about her past, having grown up without a father and a mother who refused to discuss him. When she stumbles upon a diary that suggests she's descended from magicians, she's skeptical. After all, magicians are special, and she's just an ordinary woman who loves books. She seeks answers from a member of the most prominent family of magicians, but she quickly learns that finding the truth won't be easy, especially when he turns out to be as artless as her, and more compelling and dangerous than books.

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.

Helen Lambert has lived several lives-a young piano virtuoso in 1890s Paris, an actress in 1930s Hollywood, a rock star in 1970s Los Angeles - only she doesn't know it. Until she meets a strange man who claims he's watched over her for centuries, bound to her from the beginning. At first, Helen doesn't believe him. Her life is as normal as any other modern career woman's. Then she begins having vivid dreams about ill-fated love and lives cut short. Caught in a curse, Helen will be forced to relive the same tragic events that ruined her previous lives.

Lowen Ashleigh is a struggling writer on the brink of financial ruin when she accepts the job offer of a lifetime. Jeremy Crawford, husband of best-selling author Verity Crawford, has hired Lowen to complete the remaining books in a successful series his injured wife is unable to finish. Lowen arrives at the Crawford home, ready to sort through years of Verity's notes and outlines, hoping to find enough material to get her started. What Lowen doesn't expect to uncover in the chaotic office is an unfinished autobiography Verity never intended for anyone to read.

Five Years Earlier: Henry Dunne knows three things: that agreeing to host this raucous house party was a terrible idea, that he absolutely cannot show up to his nursing shift tomorrow with a hangover, and that the beautiful redhead in the corner will be sleeping in his bed tonight.

Ryder, Garrett, Kenzo, and Diesel - The Vipers. Their deals are as sordid as their business, and their reputation is enough to bring a grown man to his knees, forcing him to beg for mercy. They are not people you mess with, yet my dad did. The old man ran up a debt with them and then sold me to cover his losses. Yes, sold me. They own me now. I’m theirs in every sense of the word. But I’ve never been meek and compliant.

Obituary writer Nadine Barbault doesn’t mind being called “Lady Death”. It suits the ice queen persona she’s cultivated to survive the fast-paced Toronto Herald. So when Nadine learns that famous (and reclusive) author Dot Voline has died, she doesn’t hesitate to run the obituary…only to discover that Dot is very much alive. Nadine’s screw-up has brought Wesley Chen of the rival Spear no end of joy—she’s been a thorn in his extremely ambitious side for years. But the renewed interest in Dot also surfaced chatter about a mysterious past scandal.

Hockey coach Ashley Jaswal doesn't take nonsense from anyone … except her overbearing and superstitious family. They believe she's a good luck charm for her brother Jas, the newest Vancouver Canucks draft pick, forcing Ash to attend all his games as he rises up the NHL ranks, sacrificing her personal life (not that she has one—who decided hockey season needed to be 10 months long anyway?). Ash also clashes with Jas’s teammate, Canucks captain Devin Snyder.