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.

The only problem is her two stepdaughters, Ruby and Poppy, who are fiercely loyal to their mother, and reject all her overtures.

But 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.