The legendary life of José Teixeira da Silva, José do Telhado, married to his cousin Aninhas, defeated his father's resistance, due to the fame of his heroism during the civil war.

Tiaga tells the story of a poor old woman, played by Isabel de Castro, to whom a good wizard offers the gift of youth to reward the help she provided him. A version of “Faust” seen through the female eye and featuring some unusual moments, such as a shot of a black goat while José Afonso sings, as well as nightmare sequences in which Tiaga is chased by the devil.