In 1880, young Bertha Pappenheim got strangely ill—she lost her ability to control her voice and her body. She was treated by Sigmund Freud’s mentor, Josef Breuer, who diagnosed her with “hysteria.” Together, Pappenheim and Breuer developed what she called “the talking cure”—talking out memories to eliminate symptoms. Freud renamed her “Anna O” and appropriated her ideas to form the theory of psychoanalysis. All his life, he told lies about her. In this unusual work of science, history, and psychology, Brownstein does more than describe the controversies surrounding this extraordinary woman. He brings Pappenheim to life. At the same time, he tells a parallel story that is playing out in leading medical centers today, about patients who suffer symptoms very much like Pappenheim’s, and about the doctors who are trying to cure them—the story of the neuroscience of a condition now called FND.