Ingrid Waverly was forced to leave her life in London with her mother and her younger sister, Gabby. In Paris the house rented by Ingrid's twin brother, Grayson, isn't a house at all. It's an abbey. And to top it all off, Grayson is missing. Yet no one seems to be concerned about Grayson's whereabouts save for Luc, a servant who has some deep and dark secrets of his own. Ingrid is sure her twin isn't dead, and that it's up to her and Gabby to find him before all hope is lost.