An experimental drug that is supposed to reduce aggression has the opposite effect on a baboon that is being experimented on by a group of medical students and their professor. While they are playing a fantasy role-playing game in their research facility, the baboon escapes and begins hunting them down.
Leo is a successful author of mystery novels, who writes under a pseudonym. While penning his next book in an isolated chalet, he receives a strange visit from Jota, a somewhat troubling character, who claims to be a journalist.