"Independence Day weekend, 1960: a young cop is murdered, shocking his close-knit community in Stamford, Connecticut. The killer remains at large, his identity still unknown. But on a beach not far away, a young Army doctor, on vacation from his post at a research lab in a maximum-security prison, faces a chilling realization. He knows who the shooter is. In fact, the man—a prisoner out on parole—had called him only days before. By helping his...