Comical late 1920s Brazilian daily life's situations, portrayed by two friends who decide to serenade a common girlfriend, a drunk barber and a bad haircut, and a man who is barred from playing his songs at the hotel where he was staying.

A man is looking for a radio singer named "Dulcineia." For this, he goes through the biggest hassles and problems. The plot, in fact, is an excuse for the exhibition of the musical numbers of the greatest Brazilian Radio artists.

Two authors go look for a business to finance their dream musical.

The documentary celebrates the poetic legacy of Lupicínio Rodrigues, investigating the musical contribution and historical context of this composer born in Rio Grande do Sul and author of hits that surpass generations.