In São Paulo, in the late 1960s, the convent of the Dominican friars became a trench of resistance to the military dictatorship that governs Brazil. Moved by Christian ideals, frets Betto, Oswaldo, Fernando, Ivo and Tito came to support the guerrilla group Ação Libertadora Nacional, commanded by Carlos Marighella.
Godofredo suffers a terrible blow when he comes back home earlier than usual and finds his wife in the arms of his partner. He sends his wife away to a coast town and dares his rival to a duel. But he begins to miss his wife and the company of his friend.
Ângelo arrives at his grandmother's house in Minas Gerais. There, a small chest full of coins and an enigma were discovered, supposedly left by a priest who, 200 years earlier, would have hidden a handful of diamonds.
