A bandit gets ambushed while hiding their loot in a cave and turns to a ghost to watch over his treasure. 3 years later, some villagers find some gold coins in the cave and words spread about the treasure. Many treasure hunters come for it.
The local man's girlfriend (or wife) seduces and fucks a camper/treasure hunter so that she can enter his room and steal the treasure that he found. Their interaction starts at 54:31.