A Norwegian scientist builds a device that can convert sound waves into electrical energy. However, the machine is stolen by the scientist's wife and assistant, who head across the frozen tundra towards Russia. A police inspector and a local girl team up with the scientist to help recover the device.
Anderssonskans 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.
