Mary and her sisters anxiously come together to read the long-lost love letters their father, Jack, wrote to Maggie, their mother, while he was stationed in Korea over sixty years earlier. As they read, the sisters are shocked to discover that their parents had hidden a deep, dark secret from them their entire lives. To make matters worse, the letters only divulge half the secret. Desperate for answers, the sisters set out to find them by any means necessary, which leads them straight to their mother's childhood home at Petite Rose and to the only person they can think of who knows the answers to all their questions: their mother's twin sister, Tess.