Sicily 1812: the first liberal constitution shall put an end to the privileges of the feudal lords. Luca Corbara (Pagliai) is sent there by the Minister of Finance to control the landed properties.Following the ballad heard from a storyteller, he begins to suspect that the current Carini feud is made up of lands usurped more than two centuries before by the lover of the killed Baroness. Don Mariano d'Agro'(Celsi), the Baron of Carini, is hampering him and tries to get rid of Luca Corbara by accusing him of the murder of the storyteller Nele Carnazza. Through the intervention of the mysterious sect of the Beati Paoli, who want to avenge the wrongs committed by the Baron, and the help of Laura, the wife of Don Mariano (Agren), he is kept from being accused.