Alice Babs

Janne has just spent a year in jail and dreams of a career as a pianist. He falls in love with young songwriter Britt, but her father does everything to ruin their relationship.

At school, a music teacher is testing the pupil's ability to sing. The 16-year old Inga Danell starts to sing a song so catchy that everybody in the classroom starts to sing. The singing is interrupted by the principal, who thinks that jazz and swing dancing is awful. Inga then starts performing at a nightclub, where her music teacher happens to be the pianist.