Kezia Cooper Hobson, recently widowed, arrives in New York from San Francisco. Determined to make a fresh start, she has just completed the sale of her Pacific Heights home, not to mention her husband's venture capital firm, and in doing so, is also freed from her responsibility as a board member of the company. Bringing with her only a few personal treasures, she is excited to move into the blank slate of a beautiful midtown penthouse, in the city that she has always loved. It is also where her two adult daughters now live.

Darcy Gray is a successful influencer with her blog, The Gray Zone, trusted by more than a million followers for her integrity and taste. At forty-two, she has the life she wants in many ways. Darcy and her husband, department store magnate Charles Gray, are a power couple in Manhattan and on the international stage. Their beloved twin daughters are each enjoying their junior year abroad, Penny in Hong Kong and Zoe at the Sorbonne in Paris. To celebrate twenty years of marriage, Darcy impulsively flies to Rome to surprise Charlie, who is tending to business interests there.

It's the summer of 1959 and the Palace of Versailles is hosting an event that will make history. It is an exclusive dusk to dawn ball in which a select group of American and French debutantes will be presented to international society and royalty. Four young women, all with something to prove, receive what some see as the invitation of a lifetime.

As the head of a prestigious movie studio for nearly two decades, Andy Westfield has had every conceivable professional luxury: a stunning office on the forty-fourth floor, a loyal assistant who can all but read his mind, access to a private jet and company cars. The son of Hollywood royalty, Andy always put his career before his marriage, and now, besides his daughter and young grandchildren, it’s the only thing he truly loves. But then Andy’s world is upended. The studio is sold, and the buyer’s son demands the top seat. Out of a job and humiliated, Andy spirals.

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.

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.

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.

Sophia Alexander, the beautiful daughter of a famous surgeon in Berlin, has had to grow up faster than most young women. When her mother falls ill, Sophia must take charge of her younger sister Theresa, look after her father and the household, while also volunteering at his hospital after school. Meanwhile, Hitler's rise to power and the violence in her very own town have Sophia concerned, but only her mother is willing to share her fears openly. After tragedy strikes and her mother dies, Sophia becomes increasingly involved in the resistance.

On the occasion of her daughter Valerie's wedding and her upcoming fiftieth birthday, bestselling author Halley Holbrook finds herself reflecting. Raising twins Valerie and Olivia is her proudest accomplishment. Halley has been able to give them the loving and safe home she never had, having survived a childhood so traumatic she's never talked about it with her girls. Long ago, Halley decided to live in the sunlight of the present, not the dark shadows of the past.

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.

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.

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.

Following the unexpected death of her beloved husband, art gallery owner Samantha Thompson finds herself adrift in their Malibu beach house. Her three adult children—scattered from New York to London to Milan—are concerned for her well-being and encourage her to take a trip to Paris. Once abroad, an impulsive day trip from Paris to Biarritz leads Samantha to discover the charming medieval village of Arcangues in the Basque countryside, with its unique and iconic blue shutters and historic château.

Spencer Brooke always knew she was destined to be CEO of her grandfather’s business—the most respected and luxurious department store in New York City. Brooke’s has been at the center of every happy memory she has, but it hasn’t been an easy journey. Seven years after her father’s death, her life is very different from the days when she walked through the store with her grandfather as a young girl. She may be the owner of Brooke’s, but she’s also now a divorced single mother of twin boys.