Following the unexpected death of her beloved husband, art gallery owner Samantha Thompson finds herself adrift in their Malibu beach house. Her three adult children ... scattered from New York to London to Milan ... are concerned for her well-being and encourage her to take a trip to Paris. Once abroad, an impulsive day trip from Paris to Biarritz leads Samantha to discover the charming medieval village of Arcangues in the Basque countryside, with its unique and iconic blue shutters and historic château. The château is the ancestral home of Xavier de Bonport, who is trapped in a loveless marriage and trying to dig himself out financially after a business failed due to the pandemic. He needs rental income as urgently as Samantha needs a refuge. With Xavier living in a smaller house on the property, Samantha begins to transform the château into a temporary home. As they each sense compassion and resilience in the other, as well as kindness, a friendship blossoms. Inspired by the stories of Xavier's grandmother, who saved hundreds of Jewish children during World War II, Samantha considers fostering some children at the request of the local Dominican nuns, whose orphanage is filled to capacity. As a newfound family begins to fill the château, Samantha and Xavier wonder if their friendship is becoming something more.