"When Astrid Strick witnesses a school bus accident in the center of town, it jostles loose a repressed memory from her young parenting days, decades years earlier. Suddenly, Astrid realizes she was not quite the parent she thought she'd been to her three, now-grown children. But to what consequence? Astrid's youngest son is drifting and unfocused, making parenting mistakes of his own. Her daughter is intentionally pregnant yet struggling to give up her own adolescence. And her eldest seems to measure his adult life according to standards no one else shares. But who gets to decide, so many years later, which long-ago lapses were the ones that mattered? Who decides which apologies really count? It might be that only Astrid's 13-year-old granddaughter and her new friend really understand the courage it takes to tell the truth to the people you love the most ... [This is a] story about adult siblings, aging parents, high school boyfriends, middle school mean girls, the lifelong effects of birth order, and all the other things that follow us into adulthood, whether we like them to or not."