Leprechaun: Origins

In the Irish countryside, a group of tourists stumble upon a sinister reality when they encounter a demented local village offering sacrifices to a deadly leprechaun. The villagers have been locked up by their own son and gruff old man, who reveals that the monster is a Tuatha Dé Danann, forced to sacrifice humans every year as "compensation" for gold. As the tourists try to escape, they discover that the symbol on the monolith serves as a barrier beyond which the leprechaun cannot get out, and that its presence can be repelled by a certain mark.