Watch 123Movies. Last Moon is a frontier nightmare set in the Old West. A former bounty hunter living under a new name believes he has buried his violent past on a remote wilderness farm, but when a savage creature emerges from the forest and tears his family apart, he is forced back into the life he tried to escape. As he and his young daughter track the creature through the darkening woods, a horrifying truth emerges: the monster hunting them is not just a wolf, but the living consequence of a massacre he committed years earlier. Blending the mythic brutality of the Western with the primal terror of werewolf folklore, Last Moon is a haunting tale of vengeance, guilt, and sins that refuse to stay buried.