16-year-old Maria is forced into Serra D'Aires convent, secretly run by Satanists.
Susan Hemingway
as Maria Rosalea Coutinho
Ana Zanatti
as Mother Alma, the Grand Priestess
William Berger
as Father Vicente
Herbert Fux
as Satan
Vítor Mendes
as António Fernando Queiroz de Melo
Anton Diffring
as Old Priest
Aida Vargas
as Joanna, a Nun
Esther Studer
as Josefina
Dagmar Bürger
as Nun
Herman José
as Manuel Gonçalves
José Viana
as The Grand Inquisitor
Patricia Da Silva
as Maria's Mother
