The bloody trail of a mysterious medallion stretches from the depths of centuries. Rumor has it that this medallion is cursed, as is the most beautiful woman depicted on it. Her name is Erzbeta Bathory, but the atrocities committed against innocents earned her the nickname The Bloody Countess. Anyone who wrongfully takes possession of a medallion is doomed to terrible torment, but there are still brave souls who are ready to risk their lives and well-being for the sake of a portrait of a medieval villainess. Amateur detective Nadezhda Lebedeva, being a convinced materialist, treated all mysticism with distrust, but the chain the tragic events she witnessed shook her views...