Geninha and Fortunato are couple who loves music. He's a good songwriter, she sings well. Despite this, their parents hate each other and do not seem willing to allow their marriage, nor the creation of a local radio for them.

Maria Matos
as Rosa Gonçalves

António Silva
as Cipriano Lopes

Maria Eugénia
as Geninha, a Menina da Rádio

Óscar de Lemos
as Óscar

Curado Ribeiro
as Fernando Verdial

Teresa Cazal
as Teresa Waldemar

Francisco Ribeiro
as Fortunato

Aida Ultz
as Aidinha Seabra

Maria Olguim
as Maria do Ó

Manuel Santos Carvalho
as Leitão