yes the plot was there's two people that were father and a son (that was a kid boy) that were kinda rude with a guy that work there, this guy went to complain to the principal about that, and this one lured these two into a secret room or tunnel with the promise of gifts or a free dinner (didn't remember correctly),and after they enter , they brutally killed them and cut them to pieces and like i said, they make hamburgers with their meat.. i remember that kinda disturbing me .. even if the characters was kinda mean and annoying, but i don't think they deserve that ..