Directed by Jerzy Kawalerowicz and inspired by the (presumably) real case of the "Loudun Possessions", the story of "Mother Joan of the Angels" is set on the seventeenth century, in a small village in Poland. There, a priest known as Jozef Suryn (Mieczyslaw Voit ) is sent to a convent, to help a group of nuns, who have been suffering from demonic possessions, especially Mother Joan (Lucyna Winnicka). As soon as Jozef meets Mother Joan, she threatens him with her diabolic voice and tells him that it won't be easy to cast the demons away and that she's not afraid of him. From that moment on, Fat...