On a beautiful summer night in a charming English suburb, a young woman and her boyfriend disappear after partying at the massive country estate of a new college friend. One year later, a writer moves into a cottage on the edge of the woods that border the same estate. Known locally as the Dark Place, the dense forest is the writer’s favorite place for long walks and it’s on one such walk that she stumbles upon a mysterious note that simply reads, “DIG HERE.”

Owen Pick’s life is falling apart. In his 30s and living in his aunt’s spare bedroom, he has just been suspended from his job as a teacher after accusations of sexual misconduct - accusations he strongly denies. Searching for professional advice online, he is inadvertently sucked into the dark world of incel forums, where he meets a charismatic and mysterious figure. Across the street from Owen lives the Fours family, headed by mom Cate, a physiotherapist, and dad Roan, a child psychologist. But the Fours family have a bad feeling about their neighbor Owen.

Sarah Jennings knows there’s one place she can go to find some peace and quiet during her difficult divorce. But arriving at her beloved father’s home in the countryside, she finds him unwell and hunched over boxes of files, studying the records from Cedar Hall, the crumbling orphanage in town. He says that hidden behind the wrought iron gates and overgrown ivy are secrets about their family, and he asks for her help.

What happened to Jacques Gaillard? The brilliant teacher at the École Nationale d’Administration, who trained some of France’s best and brightest as future prime ministers and presidents, vanished ten years ago, presumably from Paris. This ten-year-old mystery inspires a bet—one that Enzo Macleod, a biologist teaching in Toulouse, France, instead of pursuing a brilliant career in forensics back home in Scotland, can ill afford to lose.

Tuscany, 1944: As Allied troops advance and bombs fall around deserted villages, a young English soldier, Ulysses Temper, finds himself in the wine cellar of a deserted villa. There, he has a chance encounter with Evelyn Skinner, a middle-aged art historian who has come to Italy to salvage paintings from the ruins and recall long-forgotten memories of her own youth. In each other, Ulysses and Evelyn find a kindred spirit amidst the rubble of war-torn Italy, and set off on a course of events that will shape Ulysses's life for the next four decades.

Lex Gracie doesn't want to think about her family. She doesn't want to think about growing up in her parents' House of Horrors. And she doesn't want to think about her identity as Girl A: the girl who escaped, the eldest sister who freed her older brother and four younger siblings. It's been easy enough to avoid her parents - her father never made it out of the House of Horrors he created, and her mother spent the rest of her life behind bars. But when her mother dies in prison and leaves Lex and her siblings the family home, she can't run from her past any longer.

Lovers and business partners Niamh and Ruairidh are owners of a small Hebridean company, Ranish Tweed. Their fabrics have become internationally sought-after in the world of fashion. But the threads of their relationship are beginning to fray. As they prepare for an important showing at a Parisian fabric fair, Niamh accuses Ruairidh of having an affair with a Russian fashion designer they work with - a fight that ends with Ruairidh storming off. Moments later, Niamh watches in horror as the car containing her life partner explodes in a ball of flame. With Niamh a prime suspect in the murder, the Parisian police hound her....

When Sophie’s life falls apart, she accepts an invitation from a childhood friend, Caroline, to visit her family’s beautiful beach house, miles from the nearest town. The silence is broken only by the rhythmic crash of the waves against the jagged black rocks below. But when Sophie arrives, she finds her friend much changed. Caroline - who used to be so warm and confident - is secretive and on-edge, spending long, unexplained hours away from her family. And then there’s Caroline’s little daughter Lucy - who stopped speaking soon after they moved in.

There's Bella, stay-at-home mum of Teddy. She suffered postpartum psychosis after Teddy's birth. There's Chrissy, divorce lawyer, married to Russell. They're having some problems with their sex life. There's Electra, mother to twins, who is struggling with her son's behaviour. There's Skye, a single mother, who used a sperm donor to have her baby. Then there's Jen. She was supposed to be a mother, but it hasn't worked out like she expected.

When Edie’s mother-in-law, Anna DeLuca, dies, she is relieved. Edie blames Anna for the accident that destroyed her family. So, when her will lures Edie to Sicily and the long-abandoned Villa della Madonna del Mare, she sees through Anna’s games. Suspecting Anna is meddling from beyond the grave to try to reunite her and her ex-husband Joe, Edie is determined to leave Italy as soon as possible.

Selina Lennox is a Bright Young Thing. Her life is a whirl of parties and drinking, pursued by the press and staying on just the right side of scandal, all while running from the life her parents would choose for her. Lawrence Weston is a penniless painter who stumbles into Selina's orbit one night and can never let her go even while knowing someone of her stature could never end up with someone of his. Except Selina falls hard for Lawrence, envisioning a life of true happiness. But when tragedy strikes, Selina finds herself choosing what's safe over what's right.

Rosa Kusstatscher has built a global fashion empire upon her ability to find the perfect outfit for any occasion. But tonight, as she prepares for the most important meeting of her life, her usual certainty eludes her. What brought her to this moment? As she struggles to select her dress and choose the right shade of lipstick, Rosa begins to tell her incredible story. The story of a poor country girl from a village high in the mountains of Italy. Of Nazi occupation and fleeing in the night. Of hope and heartbreak in Switzerland; ambition, glamour and love in Paris.

Washington, DC, 2019: Laura Preston is a reclusive artist at odds with her older sister Beatrice as their elegant, formidable mother slowly slides into dementia. When a stranger contacts Laura claiming to be her brother who disappeared forty years earlier when the family lived in Bangkok, Laura ignores Bea’s warnings of a scam and flies to Thailand to see if it can be true. But meeting him in person leads to more questions than answers.

London, 1948: Eve Forrester is stuck in a loveless marriage, isolated in her gloomy house, when out of the blue, she receives a letter. A wealthy stranger has left her a mysterious inheritance, but in order to find out more, she must travel to the glittering French Riviera. There, Eve discovers she has been bequeathed an enchanting villa overlooking the Mediterranean Sea, and suddenly, life could not be more glamorous. But while she rubs shoulders with the rich and famous, challengers to her unexplained fortune begin to emerge - challengers who would love to see Eve gone forever.

It is in 1950s Brighton that Marion first catches sight of Tom. He teaches her to swim, gently guiding her through the water in the shadow of the city's famous pier, and Marion is smitten - determined her love alone will be enough for them both. A few years later, near the Brighton Museum, Patrick meets Tom. Patrick is besotted, and opens Tom's eyes to a glamorous, sophisticated new world of art, travel, and beauty. The two lovers must share him, until one of them breaks and three lives are destroyed.