A Visigoth count conquers a small village town from the Moors in the Lusitanian mountains, only to loose his possessions through the mysterious workings of a woman from parts unknown.
A young boy Hee-Joon is possessed by an evil spirit. Nun Yunia tries to save him, assisted by Nun Mikaela. Priest Paul attempts medical treatment, while Priest Andrew performs an exorcism to rid Hee-Joon of the spirit.