It is based on the play Kalle Blomkvist, Nisse Nöjd och Vicke på Vind.
One day Kalle and Sixten test their strengths and fight against each other, while Anders, Eva-Lotta, Benka and Jonte are watching and cheering.
After unsuccessfully trying to catch Kalle, Rask brings Hilda back home.
A short time later, the musicians Vicke and Nisse sing in front of the house of the sisters.
Hulda wants to give some money to the musicians, but Hilda is annoyed by the sound of the music.
Hulda tries to alarm the White and Red Rose, but instead the policeman Rudolf Rask comes and talks to the criminals.
The film is based on the theater play Kalle Blomkvist, Nisse Nöjd och Vicke på Vind which was written by Astrid Lindgren in 1950.
In the film Astrid Lindgren's young detective Kalle Blomkvist solves a crime along with his friends from the White and the Red Rose.
[4] Later the play was performed on Swedish theater stages, with different titles like Kalle Blomqvist, Nisse Nöjd och Vicke på Vind,[5][6] Som dom gör i Amerika (short version in one act)[7] or Mästerdetektiven Blomqvist.