The people you trust are the people who hurt you the most. Nell Cosgrove is the new wife who got it all. She married her handsome, wealthy boss within six months of meeting him. They live in a beautiful riverside home. She has a flourishing career. She knew Oliver was married before. But he was already separated when they met. Nell's not a marriage-wrecker. She's not responsible for his fragile ex-wife Fiona. Nell's two stepdaughters, Ruby and Poppy, don't see it that way. They remain fiercely loyal to their mother, and reject all Nell's overtures. Against all the odds, Poppy believes her parents can get back together. And now everything is falling apart. Nell's marriage is starting to crack. Her husband spends more and more time away on business. She gets creepy text messages from an unknown admirer. He sends mysterious bouquets of flowers to her office. She starts making mistakes at work. Everything Nell thought she knew about her marriage and her new life is about to be turned upside down.