Everything in this world is turned inside out. Say the word “sun” and you will be burned at the stake as a heretic. Here the expression “you will go to heaven” is tantamount to wishing for hellish torment. Along the roads of this strange world wanders a poor singer who has an unusual gift - with the help of his songs he can see the true sky and its luminaries. He lives one day at a time and does not yet know that his life will soon change. His enemies will become friends, and a blind girl will show the way to salvation. But on this path, mortal dangers await him, meetings with robbers and clashes with the servants of the Abyss...