Composer Jørgen Rhoders lives an easy life, at least according to his son Per. Per and his stepsister, Ulla, decide to give their father a little trouble so that his compositions will improve. However, Jørgen deceives the children, and only when the children cause their parents to fall out does the situation seem to improve. Meanwhile, Ulla believes that Per is in love with Lily.
| Actor | Role |
|---|---|
 Poul ReumertJørgen Rhoders - komponist | Jørgen Rhoders - komponist |
 Anna BorgIrene - hans kone | Irene - hans kone |
 Poul ReichhardtPer - komponist - Jørgens søn | Per - komponist - Jørgens søn |
 Lily WeidingUlla - Irenes datter | Ulla - Irenes datter |
 Lilian EllisLily Lund - skuespiller | Lily Lund - skuespiller |
 Petrine SonneFru Steenberg - Irenes mor | Fru Steenberg - Irenes mor |
 Ib SchønbergJochumsen - hushovmester hos Rhoders | Jochumsen - hushovmester hos Rhoders |
 Knud HeglundBørgesen - musikforlægger | Børgesen - musikforlægger |