Leda Kupriyanova turned to Astra Eltsova, who unofficially deals with private investigations, for help - her fiancé Vlad went on a business trip and did not return. Having decided to find out more about Leda’s family, Astra found out that her father was keen on searching for Siegfried’s dagger, which supposedly belonged to the legendary Scandinavian warrior... Vlad’s traces were lost in the dense forests of the Novgorod region, where for some reason he went hunting. In the same places ten years ago, the famous professor Lianozov, who was distantly related to the Kupriyanovs, died. He, too, was obsessed with searching for the dagger. Does the blade of the mythical hero really exist, and Vlad succumbed to the fever of treasure hunting?