She knows how many miles lie between her new home in New York and her new boyfriend Sam in London.
She knows her employer is a good man and she knows his wife is keeping a secret from him.
What Lou doesn't know is she's about to meet someone who's going to turn her whole life upside down.
Because Josh will remind her so much of a man she used to know that it'll hurt.
Lou won't know what to do next, but she knows that whatever she chooses is going to change everything.