In a remote region of Peru, every December 25th, men, women and children fight to maintain their tradition.In these isolated mountains in the heart of the Peruvian Andes, among the illuminated Christmas trees, cribs and figurines, a five hundred year old tradition is perpetuated to settle conflicts: here, as a gift, every Christmas, friends, neighbours, enemies and acquaintances deliberately dispense the blows they have been withholding during the year.