After a long search, Hoffmann finds the house where Crespel and his daughter Antonia are hiding. Hoffmann and Antonia loved each other, but were separated when Crespel decided to hide his daughter from Hoffmann. Antonia has inherited her mother's talent for singing, but her father forbids her to sing because of the mysterious illness from which she suffers. Antonia wishes that her lover would return to her ("Elle a fui, la tourterelle"). Her father also forbids her to see Hoffmann, who encourages Antonia in her musical career, and therefore endangers her without knowing it. Crespel tells Frantz, his servant, to stay with his daughter, and when Crespel leaves, Frantz sings "Jour et nuit je me mets en quatre."
When Crespel leaves his house, Hoffmann takes advantage of the occasion to sneak in, and the lovers are reunited (love duet: "C'est une chanson d'amour"). When Crespel returns, he receives a visit from Dr Miracle, the act's Nemesis, who forces Crespel to let him heal Antonia. Still in the house, Hoffmann listens to the conversation and learns that Antonia may die if she sings too much. He returns to her room and makes her promise to give up her artistic dreams. Antonia reluctantly accepts her lover's will. Once she is alone, Dr Miracle enters Antonia's room and tries to persuade her to sing and follow her mother's path to glory, stating that Hoffmann is sacrificing her to his brutishness and loves her only for her beauty. With mystic powers, he raises a vision of Antonia's dead mother and induces Antonia to sing, causing her death. Crespel arrives just in time to witness his daughter's last breath. Hoffmann enters the room and Crespel wants to kill him, thinking that he is responsible for his daughter's death. Nicklausse saves his friend from the old man's vengeance.
This act is based on "Rath Krespel".
Act 3 (Giulietta)[edit]