A private detective, who was tasked with finding a missing relative of a wealthy family, enters the den of the Satanist sect, which turned out to be a secret laboratory in which terrible genetic experiments were performed. Gradually, the attempt to unravel the mystery of disappearance turns into a desperate attempt to escape from this hellish place. - find out if you can overcome your fear and enter a house that is teeming with infernal creatures; - fight with terrible monsters, creatures of hell or hide from them; - Uncover a secret of the missing relative and understand what is really going on in this place; - Look for secret passages in the walls of the house and the keys to the secret doors, find notes; - and finally, you have to look into the deepest corners of the mind of the main character, to understand who he really is. Horror. Nightmare. Fear. Monsters. Madness. And again ... And again ....