The full-length film which, though based on Mozart's opera Don Giovanni, is more about the complexity of the time and the world. We witness the creation of a modern production of Don Giovanni, reflecting the controversial present. Mozart's exciting music, uninhibited erotic, and the eternal struggle against evil which constitutes the energy of our existence.

In this zany Czechoslovakian comedy, a scientist invents a machine that projects a sleeping person's dream on a screen; disaster soon follows when the machine malfunctions and the cartoon-like dream characters become very real!