“Gamma-3” is a complex of military laboratories where prohibited genetic experiments were once carried out. But one of the senior employees had to mothball it. For thirty years, no one suspected that uncontrolled activity continued inside. Maxim, his friends and the surviving mercenaries, once below, are forced to look for a way out as soon as possible. Their actions increasingly plunge the heroes into the abyss of chilling horror, inhumanity and fear. What is inside is amazing in its monstrosity. Suddenly, everything changes dramatically...Will any of them manage to get out?