Based on his autobiography, the film narrates the tale of Hiroito, known as The King of Boca do Lixo, a district in 1950s downtown São Paulo notorious for its nightclubs, strip clubs, prostitution, bars, and drug scene. Hiroito, a bohemian from a privileged background, was accused at 21 of brutally stabbing his father over 40 times with a razor. Although he was not formally charged, two months following his father’s death, Hiroito acquired two firearms and relocated to Boca do Lixo, where he emerged as one of the area’s most notorious criminals.