Based on historical facts, the film portrays the largest slave rebellion in Brazilian history, the Malê Revolt. The uprising mobilized the black population in the streets of Salvador against slavery in 1835. After the failure of the revolt, the protesters were harshly punished and repression against black people in Brazil increased.
Fulfilling her work as a bailiff in Salvador, Íris delivers warrants and is often forced to execute orders that go directly against what she believes in. The job torments her. One day, with the disappearance of an activist after the execution of a warrant issued by her, the officer begins to investigate the crime and finds herself involved in the discovery of a large land grabbing scheme.