From the New York Times–bestselling author of Ghosted and The Love of My Life comes another love story wrapped in a mystery: an up-all-night page-turner with a dark secret at its core

Then: 2010. Carrie and Johan, madly in love, marry on the beach in Thailand, five months into their whirlwind romance. Carrie, a British surgical intern, knows she’s being uncharacteristically impulsive but is too happy to care. But as the wedding festivities stretch into the night, armed men swarm the beach and arrest Johan for crimes unknown. In police custody, Johan refuses to see or speak to Carrie. She never sees him again.

Now: 2022. Carrie is settled in the English countryside with her husband, Robin, and their six-year-old twins. After a difficult entry into motherhood, Carrie has given up her career as a physician and has convinced herself that life as a mother and wife is enough. Until she stumbles across an online post that makes her realize Johan is out of prison—has been out for years. As the memories of their intense, passionate relationship return to her, she becomes obsessed with discovering the truth about what happened on that beach all those years ago—even if that means putting her marriage and family in jeopardy.

And just when Carrie thinks she knows what she must do, a shocking twist confirms the truth found in every Rosie Walsh book: Everyone has something to hide. The One Day You Were My Husband asks readers what—and whom—they would give up to return to a first love, and to the people they once were.