A virus that turns people into something more than they were before is quickly sweeping the world, testing the institutions of modern society. It all begins when the body of a young woman, believed to be an illegal immigrant, disappears from the morgue of a small town in Arizona. An inspector from the PKZ, a disease control organization, is forced to solve this mystery, not yet suspecting that she has witnessed gigantic changes that will affect both her life and the lives of all people in the world. New creatures that have gone through strange metamorphoses reject the term “vampire”, preferring be called the "twilight people". In the struggle for their status as full members of society, they strive for power, winning places in all influential institutions - in the courts, in the government, in the elite and even in the church!