Alchemik is a Polish horror film written and directed by Jacek Koprowicz.
[1][2] An alchemist Sendivius, arrives at king Fryderyk's court, and claims that he possesses a recipe for the transmutation of base metals into gold.
He claims that the transmutation emits poisonous gasses, and asks everybody to leave the room.
After some time Sendivus arrives with gold, which he falsely claims to be the result of transmutation.
As a reward, he asks the king to release an imprisoned alchemist Tomasz Seton, who is in the possession of a real transmutation recipe.