A medieval alchemist (Klaus Kinski), knight (Harvey Keitel) and priest (Fernando Rey) mistake a flying-saucer alien for a dragon.
The young but traveled Ana arrives in a manor in the countryside of Spain to work as nanny of three girls and finds a dysfunctional family.
Tania, an asylum patient, is under the doctor’s care while suffering raging behavioral effects that follow the death of her exorcised mother.