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.

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.

Antonia Adams is the product of a loveless marriage between a beautiful young model and an aristocrat. 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".

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.

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.