In the village of Leva-e-Traz, the discovery of a oil field is responsible for a mass evasion of the townspeople. Left are the old and incapable for the extraction job. When the local priest announces he, too, is leaving the town, Satan emerge thrilled with the chance of overtaking the place.

Sad with her grandfather's death, Maria goes on vacation with her friend João on board a jeep. After being threatened by three thieves and helped by a Japanese traveler who opens their eyes to the mysteries of love, a pair gets lost in the forest and ends up at the home of a strange woman, who turns out to be a powerful witch Astarte. Realizing the danger they are in, Maria asks for help from the forest beings who teach her the secrets of the four magic keys: earth, air, fire and water. With these teachings, Maria leaves for the final confrontation against Astarte.