A conservatory student feels betrayed upon hearing that her boyfriend has become engaged to her sister, but it turns out to be a misunderstanding. A charming Viennese tale in which music—including works by Johann Strauss and Oscar Straus—plays a significant role.
| Actor | Role |
|---|---|
 S.Z. SakallKrüger, Schuldiener | Krüger, Schuldiener |
 Oskar KarlweisFranz Waldmüller | Franz Waldmüller |
 Ursula GrableyOlly Krüger | Olly Krüger |
 Frida RichardNot listed | Not listed |
 Teddy BillNot listed | Not listed |
| TTheodor DaneggerNot listed | Not listed |
| AAdele KernHannerl Krüger | Hannerl Krüger |
 Hans ThimigToni | Toni |
| KKarl EhmannNot listed | Not listed |
 Hermine SterlerNot listed | Not listed |
| KKarl ZeskaNot listed | Not listed |
| SSonia LefkovaTänzerin | Tänzerin |