A sorcerer or magician, an expert on human nature, capable of reading thoughts, healing both body and soul, was himself subject to human weaknesses... The son of a modest cloth merchant from Palermo, a gambler, a drunkard, a duelist, a forger of false wills, grew up and became formidable and the mysterious Count Cagliostro. How did this happen, what kind of personality influenced his fate? The famous Russian writer-historian Evgeniy Salias is trying to solve the mystery of the greatest intriguer of the 18th century who visited our country during the reign of Catherine II.