In ancient times, when paganism was eradicated, Christians sought to destroy all the altars of Perun. But the surviving priests managed to hide the statue of God. For many centuries, the cult of Perun was kept in secret places, and its followers, keeping the secret secret, continued their bloody rites with sacrifices ...

Nowadays, five students of the Faculty of History go to archeological practice. The professor, who heads the young antiquity seekers, tells them the legend of how, during the war, museum staff hid the aforementioned statue of the pagan god Perun somewhere in the dungeons outside the city. The characters accidentally encounter a cellar in which Perun's idol is probably hidden. Suddenly, under unexplained circumstances, the professor disappears. Students decide to go down to the cellar, hoping to find a professor, and maybe an idol. At first, the dungeon looks like an attractive place to be entertained, but only until the students are left without a map ...