The Sacred

There are places which it is better to avoid. A group of students travels to a remote, sacred land of the american indians, to be able to collect materials for a school job on the subject of about the indian traditions. Swampy area far from civilization was for centuries used as a place of trial and punishment for the murderers. The land itself has magical powers. Allows the dead to come back and punish the culprits. They begin to happen strange things and horror surrounds the students from all sides.