Lucia, a young German married to Paolo, a Neapolitan emigrant, is raped. She tells a lie to her husband, but the day he discovers the truth a tragedy begins for the woman, leading her to suicide. Paul is destroyed: he seeks revenge. He takes his diving gun and enters the room where the man who raped his woman is having a toast with his friends.

Head waiter Leopold has been secretly in love with the hostess Josepha for a long time, but she only has eyes for Dr. Siedler, a guest in the White Horse Inn. Leopold tries to get Dr. Siedler interested in the daughter of Industrialist Giesecke, who would rather see his daughter married to Sigismund.

In southern France, in a quiet little town, the mayor, who also owns a castle with some cattle, is in the wine cellar with some other people: the pharmacist, the veterinary, and some of his employees. As they are drinking wine, they hear a terrible noise and the heat's getting higher and higher. They don't realize what's happening: when they come out of the cellar, they realize that everything has burned, and all the buildings are destroyed...