London, 1940. Emmeline Lake is Doing Her Bit for the war effort, volunteering as a telephone operator with the Auxiliary Fire Services. When Emmy sees an advertisement for a job at the London Evening Chronicle, her dreams of becoming a Lady War Correspondent suddenly seem achievable. But the job turns out to be working as a typist for the fierce and renowned advice columnist Henrietta Bird. Emmy is disappointed but gamely bucks up and buckles down.

Surrey, England, 1938. After 30 devoted years of marriage, Ellie Endicott is blindsided by her husband’s appeal for divorce. It’s Ellie’s opportunity for change too. The unfaithful cad can have the house. She’s taking the Bentley. Ellie, her housekeeper Mavis, and her elderly friend Dora—each needing escape—impulsively head for parts unknown in the South of France.

2016: Thirty-four-year-old Mari Starwood is still grieving after her mother’s death as she travels to the storied island of Martha’s Vineyard, off the coast of Massachusetts. She’s come all the way from California with nothing but a name on a piece of paper: Elizabeth Devereaux, the famous but reclusive Vineyard painter. When Mari makes it to Mrs. Devereaux’s stunning waterfront farm under the guise of taking a painting class with her, Mrs. Devereaux begins to tell her the story of the Smith sisters, who once lived there.

New England, 2022. Three years ago, single mother Mallory Dunne received the telephone call every parent dreads—her ten-year-old son, Sam, had been airlifted from summer camp with acute poisoning from a toxic death cap mushroom, leaving him fighting for his life. Now, searching for the donor kidney that will give her son a chance for a normal life, Mallory’s forced to confront two harrowing secrets from her past: her mother’s adoption from an infamous Irish orphanage in 1952, and her own all-consuming summer romance fourteen years earlier with her childhood best friend, Monk Adams.

Katie Vaughn has been burned by love in the past—now she may be lighting her career on fire. She has two choices: wait to get laid off from her job as a video producer or, at her coworker Cole’s request, take a career-making gig profiling Tom “Hutch” Hutcheson, a Coast Guard rescue swimmer in Key West. The catch? Katie’s not exactly qualified. She can’t swim—but pretends that she can. Plus, Cole and Hutch are brothers. And they don’t get along. Next stop: paradise!