A team of doctors embark on a local mission in the Amazon rain forest, but it soon becomes clear that not everybody - or everything - is happy to see them. Their sudden appearance draws the attention of an animal predator, the "Boiúna."
A child witnesses his parents' murder by a man in a Santa suit. Years later, as an adult, he dons a Santa costume himself and embarks on a violent quest for retribution against those responsible for the traumatic event from his childhood.
