Freida McFadden, author of The Housemaid, revealed her true identity as brain disorder doctor Sara Cohen this week. Despite not publicly revealing her identity, McFadden's former medical colleagues found out about her earlier than anticipated. She had to keep her two careers separate to avoid compromising her ability to perform her medical duties. Many of McFadden’s colleagues were fans of her books and promised to keep the secret. However, after stepping aside from her medical career, she was finally ready to reveal who she was. McFadden has published dozens of books and is set to release her novel Divorce in May.