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.
Deep in a wintry forest, an abandoned boy struggles to protect his little sister from an infection that turns people into a feral-like state, a ruthless militia leader searching for his missing daughter, and Government agents hunting them.