Ellinor Patton is so wealthy that her six unsuccessful marriages are considered befitting of her status. She is currently unhappily single again and hoping for her lucky number seven. Vico, the hotel owner's son, dreams of a career as a singer and is in love with the flower girl Blanche. His father is eagerly trying to prevent both. Vico proves that he really has talent at a concert by the Mantovani orchestra.

Of the five premieres produced during a four-month period, Mozart's "Don Giovanni" on the first night attracted an illustrious audience. In addition to the President of the Federal Republic of Germany and a selection of diplomats and politicians, high-ranking guests included theatrical directors from West Germany and other Western European countries, composers, conductors, actors, writers, painters and sculptors, not to mention rectors and lecturers from Berlin's universities and the world's leading music critics. [...] The success was commensurate with the significance of the occasion. All involved in the performance received countless ovations in front of the magnificent yellow curtain. The new building - and the new stage with its state-of-the-art technology - had shown itself to be more than capable of handling Mozart's most demanding work.