London, 1920. Arlette works in Liberty by day, and by night is caughty up in a glamorous whirl of parties, clubs, cocktails and jazz. But when tragedy strikes she flees the city, never to return. Over half a century later, in the grungy mid-'90s, her granddaughter Betty arrives in London. She can't wait to begin her new life. But before she can do so, she must find the mysterious woman named in her grandmother's will. What she doesn't know is that her search will uncover the heartbreaking secret that changed her grandmother's life, and might also change hers for ever...