On the Big Island of Hawaii, Susan Brooks and Walter Conway, newlyweds, mostly live a quiet, peaceful life. When an ambulance pulls into the neighbor's driveway, peaceful goes out the window. Walter knows that his neighbors, Lloyd and Connie Perkins, are elderly and have health issues. It's still a shock when Lloyd ends up dead.

Connie, devastated by the sudden loss of her beloved husband, is horrified to learn that the police think he was murdered—and she's the chief suspect. The arrival of Connie's estranged granddaughter somewhat alleviates her loneliness, but involves them in events that may haunt them forever.

Susan and Walter reach out to support the frightened widow. They never could have imagined that their neighborly kindness would catch a killer and save Connie's life.