The day Maggie Lane dies, she sends her daughter Olivia a letter containing dangerous information: the address of Olivia's first love, Richie Briscoe. Olivia has not seen Richie for over twenty years, not since his desertion of her as a teenager almost destroyed her for good. She cannot understand why her mother's last act should be to stir up old drama like him. Convinced that the note represents an admission of guilt, Olivia sets off for the idyllic seaside village where Richie now lives with his young daughter Wren. Soon she has fallen for him all over again - and found in little Wren the daughter she never had. But there is a problem. For Olivia already has a husband and two sons. And where does this second chance at happiness put them?