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.
Siv Blom is a young impulsive girl with a special ability to come up in extraordinary situations. She also sleepwalks and one day strolling she sleepwalks unsuspecting into the bedroom to the sublime painter 'Picasso'. The art painter comes to admire her naivete, but doesn't have enough time for her. After that Siv stumbles across a new man, a junior manager in the firm Høyland & Høyland. Høyland jr. falls for Miss Blom, but definitely not his mother. Therefore Siv is sent on business to Stockholm and thus she meets man no. 3, the womanizer Victor Wahlin. Who to marry now that Siv has acquired three very eager suitors whom all wants Siv's consent. The stage is set for many intrigues. Who wins?
General director Strøm will create a large Norwegian industrial company to tame waterfalls and put them in pipes. But also his wife Sylvia, the gifted pianist, must be tamed. However, Strøm discovers that human material is considerably more difficult to process than the forces of nature.
The film tells the story of an ambitious young man, Tom, who loves Grete, daughter of the manager of the national railroads; but Grete's father prefers Lund, an upright and uptight army officer. To prove his worth, Tom organizes a daring robbery of the nightly Bergen Express in the hopes of outwitting his rival, who's been assigned to track down the thieves.