A pianist about to flee from a duel receives a letter from a woman he cannot remember, who may hold the key to his downfall.

In Vienna in 1900, Stefan Brand must face a duel the following morning. He has no intention of defending his honor however and plans to flee the city when he notices that he has received a letter from someone in his past. A struggling concert pianist at the time he met Lisa Berndle when she was just a teenager living next door. Brand has had many women in his life however and unaware that Lisa is genuinely in love with him, forgets all about her. They meet again but he only vaguely remembers ever having met her. Unknown to him she bears his child and eventually marries a man who knows of her past but loves her very much. When she runs into Brand many years later her love for him resurfaces and she is prepared to abandon her son and husband for him. Tragedy follows.—garykmcd

In Vienna about 1900, the decadent pianist and wolf Stefan Brand is challenged for a duel by a deceived husband. He arrives in his apartment and tells his dumb butler John that he intends to leave Vienna to avoid the scheduled duel, and John delivers a letter from an unknown woman to him. He reads the letter written by his former neighbor Lisa Berndle where she tells that she was a teenager when she develops a platonic love for Stefan, who is a promising pianist compared to Mozart. Lisa worships his performances on the piano, but she moves with her family to Linz. Later she returns to Vienna as an independent young woman, having a brief affair with Stefan, who travels to Milano promising to return in two weeks. Years later, she meets him again at the opera and her passion arises again, believing that Stefan remembers her...—Claudio Carvalho, Rio de Janeiro, Brazil