The work of investigator Sergei Dulo in Krasnoyarsk was coming to an end when a message arrived about a mysterious corpse in an iron barrel brought by the stormy Yenisei. His wife Polina and little daughter Lidochka were waiting for Sergei at home, but he managed to get his business trip extended. He had to not only find the killer, but also find out how an old map of gold mines, lost more than a century ago, had to do with this case. After all, at all times, people die for metal... Knowing the character of her husband, Polina Svirskaya was not upset that her husband again violated plans for a joint vacation due to urgent work. It's better to think about how she can help him in the investigation. After all, she also knows how to make surprises...