There are some things we are never meant to know ...Harriet Lockwood has never really bonded with her daughter, Florence, the way she has with her three sons. Then one day, she discovers why. The girl she's raised for the last fifteen years is not her biological child. Zoey Sands is a single mother with a chaotic lifestyle. The one constant in her life is her daughter, Nell. Nothing can ever come between them -- can it? When Harriet turns up on Zoey's doorstep demanding to see her biological daughter, the two families are plunged into a storm of bitter rivalries...and unexpected alliances.