Lona Frank, biologist, famous popularizer of science, author of numerous books and popular science films, acquaints the reader with the results of her new investigation. This almost detective story tells about the invention of deep brain stimulation - a new treatment technique that has become a chance for salvation for a huge number of patients locked up for life in psychiatric clinics, and its forgotten creator - Dr. Robert Heath. Scientists came up with impressive results that even interested the CIA. Given the opportunity to influence emotions and adjust people's behavior, Heath and his team faced ethical questions that had not previously faced medicine. Is it possible to so unceremoniously infiltrate and control a person's consciousness? Who is entitled to it? Who can use the results of the new methodology and for what purposes? For a wide range of readers interested in the genre of investigative journalism and questions of the history of science, new methods of studying the brain and human behavior.