- Don Giovanni is a young, wealthy nobleman in Seville, known for his wild lifestyle and romantic conquests.
- Don Giovanni seduces Donna Anna, the daughter of the Commendatore, but is caught by the Commendatore and kills him in a duel.
- Don Giovanni flees, accompanied by his servant, Leporello.
Act 2:
- Don Giovanni encounters Donna Elvira, a noblewoman from Burgos who had previously been abandoned by him. She attempts to confront and win him back.
- Don Giovanni deceives Elvira by disguising Leporello as himself and sending him to woo her, while he serenades Donna Anna's maid, Zerlina, and convinces her to come with him.
- Don Giovanni's former mistress, Donna Anna, seeks vengeance for her father's death, accompanied by her fiancé, Don Ottavio.
Act 3:
- Zerlina's fiancé, Masetto, leads a group of peasants in an attempt to capture Don Giovanni.
- Donna Anna, Donna Elvira, and Don Ottavio confront Don Giovanni, urging him to repent and accept their forgiveness, but he defiantly refuses.
- The Commendatore's ghost appears to Don Giovanni and warns him of his impending doom if he does not repent and change his ways.
- Don Giovanni ignores the warning, and the ghost drags him down to hell.
In the end, Don Giovanni's unrepented sins lead to his downfall and eternal punishment. The opera explores themes of love, betrayal, social hierarchy, and the consequences of one's actions.