The beginning of the movie starts at the time of long ago when a young girl is dragged from her house by a bunch of prejudiced villigers, who accuse the girl of witchcraft. After a short while she is hanged. We learn that the story is about a mysterious dust, that makes people bahave in very agressive manner. Next the timeline moves on to modern times when married couple move into the house and quickly discover the disturbing dust and its properties.