Guillermo Martínez

At Oxford University, a professor and a grad student work together to try and stop a potential series of murders seemingly linked by mathematical symbols.

Convinced the tragic deaths of her loved ones were orchestrated by a famous novelist she worked for, Luciana turns to a journalist to expose her truth.

After the strange death of her boyfriend and beloved ones, one by one, Clara lives terrified and mistrustful, suspecting revenge from a famous writer she worked with ten years ago. A circle that will only close with the seventh victim.

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 gang of bikers wrecks havoc.