In July 1944, Arielle von Auspeck arrives at the glamorous Hotel Ritz in occupied Paris. Half French, half German, she is happy to be back in France, where her husband, Gregor, a retired colonel, will join her soon from Germany. Arielle and Gregor have thus far been able to hide their private opposition to Hitler. Then her world falls apart. She receives word that Gregor was part of Operation Valkyrie, a failed attempt to assassinate Hitler in Poland, and has been shot as a traitor.

Oona Kelly Webster has much to be grateful for. A striking woman with red hair and green eyes, she has a loving family and a job she adores, editing a prestigious line of books. To celebrate their twenty-fifth wedding anniversary, she and her husband, Charles, have planned a visit to France. But then Charles drops a bombshell. He has been living a lie—hiding an affair for a year—and he is leaving Oona for a younger male lover.

After working as head designer for Oscar de la Renta, Eugenia Ward started her own company when she turned forty, fourteen years ago. She is now a major name in evening gowns and wedding gowns, ready-to-wear and haute couture. But with the fashion business in major downturn, she has recently suffered heavy losses, and Eugenia desperately needs new investors—and new ideas.

When she is only six years old, Allegra Dixon’s party-loving mother leaves without so much as a goodbye. Her father, an emotionally distant military officer, is also unable—or unwilling—to care for her. Sent to live like a ghost in her grandparents’ joyless home, Allegra finds her only solace through an escape into books. Attending boarding school, life finally takes a turn when she meets a dashing young West Point cadet named Shep Williams. Soon their friendship blossoms into something more, and they fall deeply in love.

As she approaches the milestone birthday of forty, delicate blond beauty Amanda Delanoe finds joy in running a chic contemporary art gallery in the City of Light. The only child of a French businessman and an American model, both now deceased, Amanda lives well and adores her dog, Lulu, but so far the love of her life has eluded her.

Alexandra Bouvier is born in Paris in 1900, at the dawn of a new century. From an early age, she is encouraged to think for herself by her enlightened family: her father, a French doctor; her mother, an American nurse; and her maternal grandfather a highly regarded newspaperman back in the Midwest. At age fourteen, Alex's comfortable life is upended as war erupts across Europe. Her parents follow their sense of duty to the front, performing triage at a field hospital and confronting the horrors of poison gas and trench warfare.

Devon Darcy’s reputation precedes her. As a highly sought-after portrait artist, she seems to have the ability to peer into the souls of her subjects and then capture them on canvas. But the world doesn’t know about the devastating losses she has endured, first as an orphan, then as a far-too-young widow. When entrepreneur Charles Mackenzie Taylor sees her at a New York gallery event, he is instantly haunted by her beauty and her talent. Having lost his mother when he was thirteen, and still living in the cold shadow of his late banker father’s disapproval, Charlie has given up on love.

Born to a French mother and American father, graceful Dahlia de Beaumont has been sole owner and CEO of the venerable family perfume business based in Paris since her early twenties, following the death of her parents. For twenty-five years, after losing her husband in an avalanche, her life has centered on running Lambert Perfumes and being a devoted single mother to her four children: indecisive Charles, volatile Alexa, kind-hearted business visionary Delphine, and dreamy artist Emma. Now fifty-six, she has an "arrangement" with a married man but has been questioning that relationship.

In her 37th bestselling novel, Danielle Steel tells the compelling story of a woman who must struggle to overcome a shattering betrayal, and the cruelest kind of malice. At seventeen, the night of her mother's funeral, Grace Adams is attacked. It is not the first time, and a brutal crime ensues...

Antonia Adams is the product of a loveless marriage between an aspiring actress and an aristocrat from a once distinguished family. As a child, she is abandoned in the abyss that yawns between them, blamed by her mother, ignored by her father, and neglected by both. Unprotected and unloved, she learns that the only way to feel safe is to hide from the dangers around her, drawing as little attention as possible to herself, to be “invisible.”

Valerie Wyatt is the queen of gracious living and the arbiter of taste with a successful TV show. Since her long-ago divorce, she’s worked hard to reach the pinnacle of her profession and to create a camera-ready life in her Fifth Avenue penthouse. So why is she so depressed? All the hours with her personal trainer, the careful work of New York’s best hairdressers, cosmetic surgeons, and her own God-given bone structure and great looks can’t fudge the truth or her lies about it: Valerie is turning sixty.

Sybil and Blake Gregory have established a predictable, well-ordered Manhattan life—she as a cutting-edge design authority and museum consultant, he in high tech investments—raising their teenagers, Andrew and Caroline, and six-year-old Charlie. But everything changes when Blake is offered a dream job he can't resist as CEO of a start-up in San Francisco. He accepts it without consulting his wife and buys a magnificent, irresistibly underpriced historic Pacific Heights mansion as their new home.

Melissa Henderson is leading a quiet life. Once a best-selling author, she now pours all her energy into renovating a Victorian house nestled in the foothills of rural New England. Six years ago, she lost her young son to cancer, and her marriage dissolved. She stopped writing. Then Melissa receives a call from her sister, Hattie. They were close once, but that was before Melissa withdrew from the world. Now Hattie, who became a nun at 25, is determined to help Melissa turn a new page, even if it means reopening one of the most painful chapters of her life.

Steph has spent decades building a family with her husband, Mal, and putting their family first. She is the glue that holds them all together, and she has convinced herself that she’s been happy...most of the time. But as she stands at her birthday party watching her husband talking about a wonderful marriage she doesn’t fully recognise, the doubts that she has been pushing down for so long begin to grow.

With wit and intelligence, Danielle Steel explores love in all its guises, taking us into the lives of three unusual but wonderfully real couples. One Day at a Time is at once moving, thought provoking, and utterly impossible to put down.