Bento de Souza, a devotee of São João, is not reciprocated by his wife, Inocência, who cheats on him with Trindade, a rogue who lives off Bento himself. That year, disgusted by the rumors about him, Bento decided to expel Trindade from the house.
Millionaire invites some friends for a weekend on an island, where some say there is a buried treasure. But a storm takes the boat away, and they stay isolated from the rest of the world. In these conditions, everybody started to show their real nature and character.