A documentary on the career of Beth Carvalho, the Brazilian singer who became a well known samba legend from the 1970s onwards, edited together from hundreds of hours of footage and audio files kept (and partially recorded) by Carvalho herself during her lifetime.

Partner of Aldir Blanc and creator of the Samba do Trabalhador, Moacyr Luz is followed by Tarsilla Alves' cameras for a week. A seasoned bohemian, we follow Moacyr's wanderings, filled with plenty of booze, gatherings with friends, and beautiful sambas that qualify him to be called the "ambassador" of the capital of Rio de Janeiro.