In Vienna, aspiring composer Johann Strauss Jr. clashes with his domineering father, who wants him to abandon music for a steady job in a bakery. Torn between his love for the baker’s daughter, Resi, and the encouragement of a wealthy countess, Strauss finds inspiration that leads to the creation of "The Blue Danube."

Professor Hamilton, a naive Nuclear scientist who once thought bombs were good for humanity, realizes his mistake and runs away from his inventions. He hides in Calabuch, a beautiful seaside town where people still believe in humor and friendship.