A host of personalities reminisce about the life and work of songwriter, lawyer, and congressman Humberto Teixeira — aka "Baião Doctor" — the author of such classic Brazilian popular songs as "Asa Branca". A musical film about the baião, a movement in Brazilian music in the 1940s and 1950s that was later snowed under by samba and bossa nova.

Mariana is a young woman from the interior of Minas Gerais who leaves for Rio de Janeiro in search of a man who seduced her and got her pregnant. But the rascal man gave her the false address, with only a photo as a reference. Staying at an uncle's house, she is faced with the difficulties of living in the big city, seeing that finding her husband in Rio is like looking for a needle in a haystack.

Unsuccessful music composer attempts suicide and moves to a new world where everything goes right for him.