When her husband announces he's in love with her best friend, painfully shy Tess picks up her young son and returns to her mother's house. There she begins an unexpected affair with an old flame. Rachel is a woman in her sixties consumed by grief at the loss of her daughter twenty years earlier. When her son announces he is taking her beloved grandson overseas, Rachel descends deeper into bitterness. Cecilia is a devoted mother to three daughters, owns an extremely successful Tupperware business and is happy in her fifteen-year marriage. Until she discovers a letter in their attic labelled: "To my wife Cecilia, to be opened in the event of my death"...Her husband's secret is a bombshell beyond all imagining with repercussions across the lives of all three women.