In medieval times during the plague. Monks have an accused witch locked up in a dungeon. She is tested by placing her inside a barrel of water with a cross on top. She can’t do it, eventually escapes and causes some of the monks to die. The real reason for her revenge is because bad things happened to her by the leader of the monks.
NC2024 found the answer:
“Thanks anyway. The film is “THE APPEARANCE” (2018) An inquisitor investigates the mysterious death of a monk and alleged witchcraft in the Middle Ages. – NC2024”