After a devastating loss, Brynn Wilder escapes to Wharton, a tourist town on Lake Superior, to reset, and checks into a quaint boardinghouse. In her fellow lodgers, she finds a friendly company of strangers: the frail Alice, cared for by a married couple with a heartbreaking story of their own; LuAnn, the eccentric and lovable owner of the inn; and Dominic, an unsettlingly handsome man inked from head to toe in mesmerizing tattoos. But in this inviting refuge, a mystery begins to swirl. Alice knows things about Brynn, about all of them, that she shouldn’t.

Zoe Whittaker is living a charmed life. She is the beautiful young wife of handsome, charming Wall Street tycoon Henry Whittaker. She is a member of Manhattan's social elite. She is on the board of one of the city's most prestigious philanthropic organizations. She has a perfect Tribeca penthouse in the city and a gorgeous lake house in the country. The finest wine, the most up-to-date fashion, and the most luxurious vacations are all at her fingertips. What no one knows is that five years ago, Zoe's life was in danger.

Strung between two teenagers, an unemployed husband, and a tenuous career, Penelope Cox barely has her life together when the past comes knocking at her door. Willa Blaine, her old roommate, needs her help: refuge from an abusive husband. “Two weeks tops,” she says - but it’s not the imposition that bothers Penelope; it’s the memories Willa brings with her. Twenty years earlier, Penelope, Willa, and three friends lived together in a converted church. Insular and closed off from the rest of the world, the five roommates formed their own dysfunctional family....

Traumatised by the death of a child in her care, top London paediatrician Claire seeks refuge on remote Selkie Island in the wilds of the Irish Sea with her husband Daniel and their baby daughter Kitty. Hidden away in Daniel’s old family home, Claire hopes to be as cut off from her guilt as she is from the mainland, but can she find peace in a place so full of its own secrets? Twenty years earlier, Daniel’s parents left the island in a boat and never made it to the mainland.

After the end of her marriage, Kate Granger has retreated to her parents' home on Lake Superior to pull herself together - only to discover the body of a murdered woman washed into the shallows. Tucked in the folds of the woman's curiously vintage gown is an infant, as cold and at peace as its mother. No one can identify the woman. Except for Kate. She's seen her before. In her dreams...