Everything Madame X has ever known is contained within the four walls of the penthouse owned by her lover, her keeper, the man who controls her every move and dominates her desires. While Caleb owns her body, someone else has touched her soul. X's awakening at the hands of Logan's raw, honest masculinity has led her down a new path, one that is as exciting as it is terrifying. But Caleb's need to own her completely knows no bounds, and he isn't about to let her go. Not without a fight that could destroy them all.