An intimate psychological film which elaborates the Faustian theme about the dispute between the body and the soul - a study on human identity. Two young doctors carry out the surgical exchange of the brains of two women who are dying after a car accident - a young girl and member of a criminal gang and a lonely seventy-year-old associate professor of oriental studies. The young girl wakes from the operation thinking like the elderly intellectual and tries in vain to live with her new identity. (https://www.filmovyprehled.cz/en/film/22344/double-role)