The annual music competition organised by Swedish public broadcasters Sveriges Television and Sveriges Radio to determine the country's representative for the Eurovision Song Contest.

During the summer holidays, a teenage girl in love with pop star Tedy Reno visits her aunt, an aging countess, at her mansion in Italy, where both music and men are strictly forbidden.

The sisters Britta and Ellinor live with their grandfather, music professor Libergius, teacher and leader of the city's orchestra association. In the city there is also a youthful jazz band - to the professor's horror.