Martina, a biology student, who after moving from her hometown to complete her studies decides to undertake an excursion to the outskirts of the city in search of rare and exotic specimens for research. Not finding the specimen after a long search, she decides to rest by the roadside. At that time, her new psychotic neighbors propose to take her to the woods where they claim is the specimen that she seeks. Martina accepts the crossing naturally, but on the way the thugs kidnap her, determined to cause all sorts of sinister and gruesome acts, both physical and psychological. The story takes an unexpected turn when Martina decides to release her pent- up anger.

A new Christmas is coming for the Cabrera family, this time marked by assassinations, world-wide and a mysterious murderous orangutan.