Sigmund Freud is one of the most important personalities of the 20th century and has not only left his imprint on psychology, his very own field of knowledge, but also on of science and cultural and intellectual history; indeed, he has shaped the twentieth century altogether. Otto Brusatti's film takes us to Vienna, New York, Rome, Paris and London and shows not only previously unknown material about Freud's life and environment but also takes a cautious look on Freud's doctrine.