In Danielle Steel’s powerful new novel, four trauma doctors - the best and brightest in their field - confront exciting new challenges, both personally and professionally, when given an unusual opportunity. When an unspeakable act of mass violence galvanizes them into action, their temporary life in Paris becomes a stark turning point: a time to face harder choices than they have ever made before - with consequences that will last a lifetime.

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.

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.

Eleven years have passed since Alexa Hamilton left the South behind, fleeing the pain of her ex-husband's betrayal and the cruelty of his prominent Charleston family. Now an assistant D.A. in Manhattan, Alexa has made a name for herself as a top prosecutor while juggling her role as devoted single mom to a teenage daughter.

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.