中世纪，一位修道士意外惨死之后，教会派了一个理性的审判者马塔奥来调查被指控的女巫。随着更多的修道士神秘死亡，马塔奥自己也被牵连其中，他必须明白：科学无法解释他周围的恐怖事件，否则他就将被这个修道院中的魔鬼所引诱……

When a medieval monk unexpectedly dies in a horrific way, the Church sends Mateho the Inquisitor, a rational man of science, to investigate the alleged "witch". When Mateho himself becomes implicated as more monks die mysteriously, he must learn that science cannot explain the horrors around him, before he is seduced by the evil that haunts this monastery.