Twenty-seven-year-old Mary Beth is a marine biologist whose heart is split between two different worlds. On one side is Peaks Island, the quiet island in Maine where she grew up; on the other is Cagliari, in southern Sardinia, where she has spent the warmest weeks of July ever since she was a little girl. It is there, in a villa just steps away from the crystal-clear sea, that her family gathers around Great-grandmother Giovannina-a ninety-seven-year-old matriarch who has never left the island-and her maternal grandparents. But this year, the still summer air of Sardinia carries a different kind of weight.
Great-grandfather Jeremy passed away ten years ago, and ever since her parents split up, her father has stayed behind in Peaks Island, entrenched in a silence that hurts more than a locked door. Having been single for a few years and suspended in an emotional limbo, Mary Beth searches for answers among the waves and the scents of her childhood.
Sardinia, however, has plans of its own. Meeting Mirko, a warm and magnetic local guy, ignites a fresh spark of possibility. But the past has a way of catching up, and just as Mary Beth tries to turn the page, two old friends unexpectedly resurface: Matthew, the rebellious boy from her senior year of high school who, after a troubled past, seems to have finally turned his life around; and Zachary, her former campus mate from the University of Vermont, an engineering management graduate whose steady presence has always meant more than either of them ever had the courage to admit.
Caught between unanswered calls traveling across the ocean, old wounds reopening, and three very different men pulling at her heart in completely different ways, Mary Beth will have to face her hardest choice yet: figuring out whether home is a place on a map, or simply the grace of finding herself.