This rarely seen and surprisingly obscure Spanish horror flick tells the story of Maria (Nadiuska), a mysterious woman, who is suspected by local people of being a witch. Maria has left the company of men and women, and now lives in a lonely mountaintop cabin with her supposed father named Gabriel. One of the main characters, Roger, falls in love with her. Unfortunately bad things happen: windows shatter, pots fall from shelves, burning wood turns cool and ineffective. Roger hypnotizes Maria to solve the mystery of her unwanted supernatural powers. It seems that Maria is possessed by the spirit of the princess of Montezuma. Also with Gaspar 'Indio' González, Luis Induni and Alfred Lucchetti.