The Cleansing

In 14th century Britain a girl is accused of being a witch and causing the plague that has ravaged her village, taking the lives of many, including her own father. When it's revealed that she has been hiding her mother's infection, she is forced to watch The Cleanser, an ominous masked figure, brutally kill her mother and subject her to five torturous trials in order to prove she is practising witchcraft.