"The Wild Hunt" - a longtime favourite of mine, well played characters, some nice, based LARP-con-humor. The story turns dark in the last third, but it's more of a character study than a "horror"-movie.

Erik Magnusson and his girlfriend Evelyn have a falling out, in part due to stress from Erik's dying, incoherent father. She leaves to play a steady role in a fantasy LARP with a wild mix of characters such as Celts, elves and Vikings. Murtagh, the leader of a group within the game, wants Evelyn to participate in the Wild Hunt, a ritual that, if successful, will give his players a significant rule advantage in an upcoming mass battle.

Erik pursues Evelyn only to disrupt the game's proceedings. Erik partners with his estranged brother Bjorn and other players and referees on a quest to find Evelyn. He rescues her from the Wild Hunt and the two are reconciled, despite Murtagh's efforts to persuade her to come back.

Having lost Evelyn and been humiliated by Erik, Murtagh snaps and ritually cuts off his gamer wrist band. He leads his followers in a vicious assault on the main camp, injuring people and killing Erik. Murtagh flees, witnessing Evelyn commit suicide as he escapes through the woods.

Days later, Bjorn breaks into Murtagh's home and beats him to death.