The young factory girl Milja comes in disaster on board fishing with Julius, who fails her for the beautiful and unreliable Petrina. The people from the bourgeoisie despise factory girls and their bastard, they are vile and promiscuous. In his despair will Milja give away the kid for it to get a better life than she can provide it. But Onsea-Lovisa ready to change her opinion.

Careless youth flirt and court in the sun at the beach.

A group of migratory rail road workers arrive in a small town in Norway, and cause social conflict. One of the men, Sjugur, stands apart as a strong, independent man. The girls like him, but he has set his sights on the daughter of a wealthy landowner.

Film director Pierre is making an erotic thriller with his girlfriend Greta. When men start disappearing, parallells between the movie and real life becomes obvious.

Alexis is celebrating his 25th anniversary as a bachelor, having never married but instead drifting through life and taking relationships and women as they came his way. Right now, he is in a relationship with a young student, the daughter of a classmate celebrating his 25th anniversary. It is the young girl Susann who is captivated by his charming gray hair. Turi is also celebrating her 25th anniversary and is Alexis' old flame and classmate, recently returned home from America after a failed marriage. The meeting between Turi and Alexis rekindles old love. During the days of September, Alexis is faced with the choice between his young and cheerful Susann and his great love from his school days. Merchant Lindby, Susann's father, also comes to Oslo to celebrate. He is celebrating his anniversary together with Turi and Alexis.