Bored with her bourgeois life, the young Maria Variani, daughter of a professor, meets Bruno, who is part of an amateur jazz group, and allows herself to be persuaded to join the band that plays during the radio program "The microphone is yours".

• Lux Film
• Mambretti Film
• Gisella Sofio
• Aroldo Tieri
• Enrico Luzi
• Ada Dondini
• Enrico Viarisio
• Guglielmo Inglese
• Mario Siletti
• Franco Pucci