When Sarah falls for Matthew, she falls hard.
So it doesn't matter that he's twenty years older. That he sees her only in secret. That, slowly but surely, she's sacrificing everything else in her life to be with him. Sarah's friends are worried. Her father can't understand how she could allow herself to be used like this. And she's on the verge of losing her job.
But Sarah can't help it. She is addicted to being desired by Matthew. And love is supposed to hurt. Isn't it?