Saitane (1973)

A sorcerer (played by the director himself) controls all activities in a village. Manipulating the different parties, the sorcerer promises love, good health and riches in exchange for the most extravagant rewards. One day someone exposes him, and the sorcerer becomes the laughing stock of the whole village. Desperate, he throws himself of a cliff.

Unfortunately the movie Saitane is not yet available on HBO Max.