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Operetta singer Adolf Berg will be called up for military duty just as he gets assigned a major role in an operetta. On the train he meets Ulla Wern and complications occur.

Inga and her father, the violin maker Lars, are big music enthusiasts. One day they meet the violinist Jan-Erik.

"How crazy!" A man and a woman watch episodes from Nils Poppe movies outside a cinema Maxim in Stockholm. Poppe represents, among other things, a poor composer who vainly tries to get a tune adopted by a publisher. The failure makes him depressed, but he is living it up by meeting a good friend Calle, who invites him home. Poppe stays for a few days as a male housewife. Calle has a music store and there the two friends can go crazy among all the instruments.

Tant is the ruthless ruler of the house and its lodgers.

Office clerk Margit suspects that the senior accountant is embezzling money from the company. Now the auditors are on their way to check the bookkeeping. It seems that the senior accountant isn't the only embezzler in the town, even the chief of police is a member of the Embezzler's Club. Margit decides to help the senior accountant.

The Sjölund family on Lillholmen in the archipelago of Stockholm is quite religious and is considered suitable for dealing with odd specimens of wild youth placed there by one of Stockholm's youth associations for young girls.

Gustav lives in Värnamo. He constructs a new boat engine, but needs time to complete it. The work has been financed by factory director "Hatt-Johan" Johansson who would like to sell the invention. Gustav's father returns from the United States and everyone thinks he's become a millionaire.

Porter's wife Emma has three daughters, all "marriageable". All three have worries about marriage.

The boys will get a new class teacher who has discipline, they get in a lot of mischief, so much complaints that they have to read extra during the summer holidays to get started in class 4.

Tailor Vipperup in Ebberöd has problems with liquidity: customers are bad at paying for his services while his own creditors are all the more intrusive. His consolation in life consists of his daughter Ellen and the faithful companion Tadeus. However, the repulsive trader Klemmensen, the town's richest man and most ruthless usurer, casts more and more lustful glances at Ellen.

The hypocritical wholesaler Johan Ekberg is taught a lesson.

Three drifters walks on a country road. Loffe is about 35 years, Maggan about 50 years and Novisen about 25 years. They arrive to a mansion with a castle ruin by a lake. Loffe says he is the eldest of children born on the estate.

Helga Breder is a young, spoiled girl. To her beloved Jörgen she says that she, as a modern young woman, is multi-talented and can do whatever she likes. Jörgen bets that she can't work as a house-maid but, if she manages it, he will buy her a diamond ring. Helga becomes a house-maid at Vinger Mansion and falls in love with an inventor, Bertil Frigård, who lives there.

Albert Engström's anecdotes of Småland have been put together to make a comedy film about Johannes and Cornelius, two smallholding farmers and best friends.

Mrs. Andersson’s Kalle is the typical 'Söderkis'. It's a boy growing up on Söder in Stockholm and he is very fond of practical jokes. His mother sees him as a good natured boy but his victims, mostly the local policeman and two old crones in the same house, see him as the devil himself.

In 1803 the Swedish inventor John Ericsson is born. After a military career he went to England and became one of the first builders of locomotives. Despite large debts, he invents the propeller. In 1839 he crosses the Atlantic and builds ships for the US Navy. When the US civil war breaks out, the Federation needs a ship to match the Confederate 'Merrimac' and preventing the Confederation from exporting cotton to Europe. Ericsson builds the 'Monitor', a ship the Federation needs to win the war.