The balance of the usual life of a young Frenchman named Jacques was disrupted by a terrible dream, and the next day a monstrous crime occurs in the city. Darkness descends on the city, enveloping it in its ominous shadows, striking fear into the hearts of the inhabitants. In the morning, the newspaper pages are full of headlines about the appearance of a serial maniac in the city, whose crimes, in terms of the monstrous method of murder, surpass the famous Ripper. Experienced Lieutenant Back Edrin, whose career in the gendarmerie is coming to an end, takes on the investigation of mysterious and terrible crimes. Jacques had no idea that he was on the edge of a bottomless abyss of darkness, in which a terrible monster lurks, living inside living flesh...