In 1900, the development of science has not been able to cover up the mystery of magic, and the people of Vienna are even more obsessed with the magic of Eisenheim (Edward Norton). This magical magician can always mix reality and fantasy, making people fall into the fog and doubt whether he really has superpowers. And Detective Ur, who is in the audience, wants to see the truth behind every performance of Eisenheim. One day, a woman who came on stage to accept the challenge shocked Eisenheim-she was his former lover Sophie (Jessica Biel). They were once forced to separate because of their class, and now Sophie will become the wife of the crown prince. Despite this, the two still have a rekindled love and cannot extricate themselves. When Sophie planned to give up everything and elope with Eisenheim, tragedy happened. She died strangely, and all the evidence showed that the murderer was the crown prince who turned from love to hate. The truth seems to have been revealed, but the world of magicians is both real and illusory, and the truth is also confusing.