Wild Heart (1966)

Juan del Diablo is a handsome, strong schooner captain in Martinique, Antilles. He is the illegitimate son of Francisco Duchamps, who is Sofia's husband and Renato Duchamps' half-brother. Juan's lover Aimee is Renato's fiancée, but he doesn't know about their official relation. Aimee is an intriguing and ambitious woman who wants to preserve Renato's power and money and Juan's passion. Aimee's sister Monica is secretly in love with Renato, but she is about to become a nun. Then Renato marries Aimee and he discovers their secret relation. Renato obliges Monica to marry Juan because she was part of their tricks. After some time they discover that they are in love, but many things separate them: social differences, culture, personalities. Then Aimee dies in an accident and Renato wants to take revenge on Juan and Monica because he considers them the cause of his troubles. He makes him to go to jail, he tries to take away his inheritance. During the eruption of Mount Pelée volcano, Sofia dies and Renato understands his mistakes and asks everybody to forgive him. Juan and Monica will be free to love.