Biography of one of the legendary names in the Samba genre of Brazilian music. Although he could hardly dance or play an instrument, he became one of the main composers of Portela, an important Samba "school" in Rio de Janeiro.
During the Carnival, in Niterói, the son of a Lira do Delírio nightclub dancer is kidnapped. With the help of a journalist friend, she dives into Rio de Janeiro's underworld and meet all kind of criminals. She also goes back in time, to a past carnival, where she thinks she might pin-point the culprit among a group of people.
