The death of Chucky's elderly father brings the entire brood together to mourn, but what should be a time of unity is disrupted by the increasingly erratic behavior of Chucky's unhappy and emotionally unstable older sister, igniting a family crisis that ultimately threatens the lives of both young and old O'Malleys. Furthermore, as if their own struggles are not enough to cope with, Chucky and his wife, Rosemarie, also find themselves called upon to help an old high school friend whose beloved wife and daughter have disappeared inexplicably. To find Brigid "Bride" O'Brien and her innocent child, Chucky and Rosemarie must untangle a shadowy mystery that stretches from the bogs of Old Erin to the darkest chapters of the cold war.