The Swedish King Gustaf III. enjoys great popularity, the majority of the nobility as well as the people. Only the count Horn, Warting and their followers seek him alive. Count René Ankarström, the faithful friend of the King, pointed to an audience, Gustaf on the conspiracy plans the count Horn and Warting. The King wants to know but nothing of these secret activities - he is immortal in Amelia, the wife of Ankarströms falls in love with. Shortly thereafter, people and the Court gathered in the dwelling of the fortune teller Ulrica Arvedson has by the King. Even Amelia requests an appointment with the fortune teller. She wants a means against their love for the King. The hidden lauschende Gustaf learns that Amelia would have to pick a particular herb even at midnight at the place. He decides to follow her. After Amelia leaves the fortune teller, the King can prophesy the future: he learns that he must soon die, killed by those which would extend the hand him next. Since appears Ankarström and the hand presses the King welcome. Midnight Amelia and Gustaf meet each other at the execution, but also Ankarström, which does not recognize his deeply veiled wife, suddenly emerges to warn the King against the conspirators. He undertakes attributed the veiled Lady to the gate without looking at it or speak it. Gustaf leaves the two to save his life. Because the conspirators appear and Amelia must unveil - because detects Ankarström that he was deceived and joined the conspirators. At the later held ball Festival succeeds Ankarström the King, who had decided to refrain from Amelia, to wound mortally with his dagger. Dying gives him the King and asserts Amelia's honor to have not violated...