Pete and Jackie Hatch have been together for decades; they were high school sweethearts, although they didn’t marry until years after an explosive incident at the end of senior year broke them apart. Now in their sixties, with their only daughter grown and facing scary news about Jackie’s health, they travel to their Cape Cod hometown for Pete’s first book signing. But a disastrous encounter with an old schoolmate brings their long marriage to the breaking point and forces them to revisit the long-ago event that changed the trajectory of their lives.