A small town is one day visited by a priest who is there on a secret mission. He is a member of the Inquisition sent to investigate the activities of a local miller. The miller and his son are the descendants of an old family whose ancestral home burned down a century ago, but was rebuilt from scratch. The miller inherited much of his knowledge about the land, water, and a building's stability from generations of family experience. His reputation for finding water and predicting when a structure might collapse have come to the attention of the Inquisition -surely he must be in league with the Devil.

Vítězslav Vejražka
as The Burnt Miller

Miroslav Macháček
as Chaplain Probus

Čestmír Řanda
as Regent of Valec

Vlastimil Hašek
as Filip the Hunter

Vít Olmer
as The Miller's Son Jan

Karla Chadimová
as Martina

František Kovářík
as Sheep Shepherd

Bedřich Karen
as Bishop Dittrichstejn

Josef Hlinomaz
as Foreman in the Field

Jaroslav Moučka
as Jakub