Filmmaker José Mojica Marins travels to spend Christmas with friends in a small farm, where they spend leisure time while Mojica writes the story for his next film. However, he observes eerie things in the house, with his friends being possessed one by one by some supernatural evil force.
Beautiful model is hired to star a campaign to sell a new product: the male contraceptive pill. But it isn't easy to win the confidence of its target market, since people believe it causes impotence.
