The script is based on the novel "The Volunteer Teacher" by Laura Olemá. The story takes place in a camp for volunteer teachers who join a campaign to promote literacy. The film focuses on several young people and their constant confrontation with a reality that has little to do with the idealized ideals they aspired to.

While Havana is full of zombies hungry for human flesh, official media reported that the disturbances are caused by dissidents paid by the United States. Panic seizes all until Juan comes to the rescue: he discovers he can kill the undead destroying his brain, and decides to start a small business under the slogan "We kill your loved ones."