Sidonie C. was born in 1900 and became particularly well-known for being sent to Dr. Freud as a young woman in order to treat her homosexuality. She became a famous case documented by Freud. With vivid language, Ines Rieder and Diana Voigt tell the eventful story of a strong-willed and fascinating woman from an upper-class family whose life was profoundly shattered by the expulsion and extermination of the Jewish population. The biography is based on numerous interviews and many years of research and was supplemented by extensive photographic material and detailed background information.