Mona and Egil have grown up with a jumble of parents and stepparents. Now they have a total of three pairs of parents. Mona gets pregnant, and all her parents want her to get married. During the engagement party, the parents cheat on each other one by one, which leads to Mona escaping with her fiancé. They decide not to get married. The parents travel to Copenhagen to look for the escaped young people.
| Actor | Role |
|---|---|
| EEva LundeSussie Krahn-Johnsen | Sussie Krahn-Johnsen |
| FFridtjof MjøenBirger Krahn-Johnsen | Birger Krahn-Johnsen |
| AAnita ThallaugMona Mowitz | Mona Mowitz |
| JJan VoigtEgil Krahn-Johnsen | Egil Krahn-Johnsen |
| EEgil ÅsmanFredrik | Fredrik |
 Tore FossOtto Heymann | Otto Heymann |
| SSynnøve GleditschElla Heymann | Ella Heymann |
| TTage LüneborgKapellmesteren i Lorry | Kapellmesteren i Lorry |
| SSigurd MagnussønGamle Krahn-Johnsen | Gamle Krahn-Johnsen |
| LLillemor NeremAnnelise | Annelise |
 Lars NordrumRolf Hagen | Rolf Hagen |
| TThorleif ReissAlf Mowitz | Alf Mowitz |
| CCarl StruveBalthazar Krahn-Johnsen | Balthazar Krahn-Johnsen |
| AAxel ThueHelm | Helm |
| AAnne Lise WangAgathe Mowitz | Agathe Mowitz |