L'appel de la chair (1929)

Paul Lambert is a rich widower, and marries again with a young, beautiful woman. Charley Lambert is a spoiled young man, Paul's son from the deceased wife. When Charley comes back from travelling around the world, and meets his godmother, he is not able to repress his own passion for her. Soon, father and son are not speaking to each other. Eventually, Charley is bitten by a venomous snake, and Paul is denying him the antidote he has... In the end, the blood link between them takes over of their love jealousy, and they will reconcile.