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.

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.

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.

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.

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.

It’s 1984, and life has changed beyond recognition. Airstrip One, formerly known as Great Britain, is a place where Big Brother is always watching, and nobody can hide. Except, perhaps, for Winston Smith. Whilst working at the Ministry of Truth, rewriting history, he secretly dreams of freedom. And in a world where love and sex are forbidden, where it’s hard to distinguish between friend and foe, he meets Julia and O’Brien and vows to rebel.

Jazz Bashara is a criminal. Well, sort of. Life on Artemis, the first and only city on the moon, is tough if you're not a rich tourist or an eccentric billionaire. So smuggling in the occasional harmless bit of contraband barely counts, right? Not when you've got debts to pay and your job as a porter barely covers the rent. Everything changes when Jazz sees the chance to commit the perfect crime, with a reward too lucrative to turn down.

Tess Strebel can’t recognize her own face. She can’t recognize her home. Her bedroom is unfamiliar. And she can’t remember the handsome stranger lying next to her in bed. A stranger who claims he’s her husband. Tess reads a letter in her own handwriting, composed during a rare lucid day, explaining her life as it now exists: she was in a terrible car accident one year ago. Every morning, she wakes up unable to remember most of the last decade. Including her own wedding.

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 ...

1890. American heiress, Cora Beaumont is celebrating her engagement to Terrance Tristan, the second son of a duke. Their union will solidify Cora's place in British society and put her in a rare position of power, but as they embark on the Lady Air’s maiden voyage to England, Cora soon finds that not everyone in society is accepting of her recent engagement, and tensions fly as high as the airship. When a body is discovered the first night on the ship, with a calling card for Cora on the victim, she’s determined to find the killer hidden among the passengers before they come for her next.

Everyone at the party had a secret. Someone killed to keep theirs. London, 1922. Draper’s daughter Marjorie Swallow is 24, independent, and determined to live life to the full. A secretarial post with enigmatic American detective Mrs Jameson looks just the ticket. And soon she’s in the thick of it. When the bohemian party they attend ends in murder, there is no shortage of suspects. Half of Bloomsbury wanted Mrs Norris dead – but who wielded the knife? Was it the handsome but troubled artist? The vivacious young actress? Or even the aristocratic lady novelist?

During 1958, with a predominantly male workforce, societal norms dictate women should be compliant, fashionable housewives. To Ariadne Winter, the sole tradition she aims to embrace is that of being fashionable. Amidst the ambiance of Ivy Tree Inn, where she's been dispatched as a writer for Ladies' Lifestyle magazine, her focus wavers as she grapples with an interview assignment concerning a Hollywood starlet on the cusp of royal matrimony—an event hailed as the "Wedding of the Century."

London, 1941: Miss Jane Treen is at her desk, strong black coffee in hand and fluffy ginger cat by her side, when her top-secret government work is interrupted by an urgent call to Devon. A woman has been found dead in a lake in a place where she shouldn’t have been. Jane needs to gather the clues and find the killer before someone else from the agency gets hurt… Shy and handsome code-breaker Arthur Cilento is bewildered by the arrival of the efficient Miss Treen and her cat Marmaduke.

England, 1926. Just days before Lord Darriby-Jones is scheduled to enlighten the world at the Annual Limacology Symposium, his secretary unceremoniously bids adieu to her employment. It's now up to Lady Darriby-Jones to find a replacement. In a twist of fate, she stumbles upon a commoner from a neighboring town willing to accept the role, despite the slug-dismantling duties that await him. He's positively thrilled at the chance to rub elbows with true aristocrats, even if his job involves less glamorous endeavors.

In 1789 Wolfgang Amadeus Mozart visits the grave of Johann Sebastian Bach in Leipzig, looking for a sign, a signal, an answer to an enigma that has haunted him since childhood: Was Bach murdered by a famous oculist? And years later, was Handel a victim of the same doctor? Allegro follows his investigation, from the salons of London to the streets of Paris, recreating an enthralling and turbulent time, full of rogues and brilliant composers, charlatans and presumptuous nobles. Running parallel to this search is the rise of Mozart, his knowledge and fame, his trials and losses.

1938, London. The four queens of British crime fiction, Agatha Christie, Dorothy L. Sayers, Ngaio Marsh, and Margery Allingham, are hosting a gala to raise money for the Women’s Voluntary Service to help Britain prepare for war. Baronet Sir Henry Heathcote has loaned Hursley House for the event, and all the elites of London society are attending. The gala is a brilliant success, despite a few hiccups, but the next morning, Sir Henry is found dead in the library. Detective Chief Inspectors Lilian Wyles and Richard Davidson from Scotland Yard are quickly summoned.

Maggie Webb has lived the last decade caring for elderly husband, Stanley, as memory loss gradually erases all the beautiful moments they created together. It's the loneliest she's ever felt in her life. When a mysterious stranger named Hassan appears at her door, he reveals a shocking truth: Stanley isn't losing his memories. Someone is actively removing them to hide a long-buried secret from coming to light. If Maggie does what she's told, she can reverse it. She can get her husband back.

At the start of a new century, a shocking murder transfixes Manhattan, forcing bitter rivals Alexander Hamilton and Aaron Burr to work together to save a man from the gallows. Just before Christmas 1799, Elma Sands slips out of her Quaker cousin’s boarding house—and doesn’t come home. Has she eloped? Run away? No one knows—until her body appears in the Manhattan Well. Her family insists they know who killed her. Handbills circulate around the city accusing a carpenter named Levi Weeks of seducing and murdering Elma. But privately, quietly, Levi’s wealthy brother calls in a special favor.

When Works Progress Administration editor Millie Lang finds herself on the wrong end of a potential political scandal, she’s shipped off to Montana to work on the state’s American Guide Series—travel books intended to put the nation’s destitute writers to work. Millie arrives to an eclectic staff claiming their missed deadlines are due to sabotage, possibly from the state’s powerful Copper Kings who don’t want their long and bloody history with union organizers aired. But Millie begins to suspect that the answer might instead lie with the town’s mysterious librarian, Alice Monroe.