The story is set in 17th century, in a region surrounding Velké Losiny and Šumperk. It is based on a historical event, the witch trials in Northern Moravia during the 1670s orchestrated by inquisitor Boblig from Edelstat to which more than 100 people fell victim. The main character is dean Josef Lautner, a cleric who tries to help his people, but later becomes one of the innocent convicted as well.