Watch VoirFilms. Boca de Ouro was born in a back room of a dance hall, and his first crib was a bathroom sink where his mother left him. The boy grows up and becomes a feared and respected bookie—an almost mythological figure in the community where he lives. Fascinated by the story of the recently deceased criminal, journalist Caveirinha seeks out the criminal's ex-lover, D. Guigui, to gather material for an article. Her accounts of Boca reflect her emotional state.