Italy, XIII century. The Inquisition is rampant, cleansing fires are burning in the squares. A young and ambitious man named Conrad accidentally meets the famous alchemist Albert of Savoy and decides to try his luck by becoming his student. However, his hopes were not destined to be justified, and then Conrad turned into an ardent persecutor of dissidents, sorcerers and witches. However, having become a fanatical defender of the faith - an inquisitor, Father Conrad could not even imagine what a cruel joke capricious fate would play on him!..