The beginning of the 18th century. Bulgaria is under the Ottoman bondage. The monks of the Monastery of Hilendar on Mount Athos warn the young monk Paisiy to beware of the "pestilent chapel". On his deathbed, the abbot conjures Paisiy to search for Slavonic books. The young monk goes from one monastery to another in search of ancient books. He breaks into the "pestilent chapel" and finds there stacks of old Bulgarian books telling of the wisdom of Bulgarians kings, and of the power and civilization of the Bulgarian Empire and its past glory. His fellow-monks try to burn the books but Paisiy manages to escape. His Slav-Bulgarian History circulates in handwritten copies through the captive country and the Bulgarians becomes truly aware of their national identity.