Alexander Schonath is an exceptionally gifted musician who plays first violin in a philharmonic orchestra. But when the orchestra runs into financial difficulties, Alexander is the first to leave and join a dance band – the other musicians, especially his father, see him as a "deserter." In Alexander's absence, his younger, perpetually sickly brother Hans makes a career in the philharmonic and becomes engaged to Maria, the daughter of the orchestra's chairman, Herbert Hartwig.
Eugen Klöpfer
Will Quadflieg
Irene von Meyendorff
Erich Ponto
Kirsten Heiberg
Elisabeth Flickenschildt
O.E. Hasse
Franz Schafheitlin
Erika von Thellmann
Theodor Loos
Malte Jaeger
Erich Fiedler
Angelo Ferrari
Ernst Pittschau
Paul Rehkopf