Hans, Karl and Rudi haven't had much luck in their lives so far. One day, Hans receives a letter from his aunt Gudula. She demands that he reanimate her little theatre "Euterpia" in Büllesheim and threatens to disinherit him if he doesn't manage to outcompete her competitor, Wengen, from the theatre "Thalia". In addition, niece Hilde is sent to Büllesheim to support Hans.