Elegant, poised Grace and free-spirited, unconventional Frankie are an unlikely pair of frenemies—bound by rivalry yet tethered by fate. Their lives are thrown into chaos, and their destinies forever entwined, when the unthinkable happens: their husbands leave them—for each other. Forced to confront a world that has moved on without them, both women must navigate the unfamiliar rhythms of life in their 70s, rediscovering themselves, redefining friendship, and learning to embrace a future they never saw coming.