Having received a letter from her mother, who left them with her father many years ago, Daineka without hesitation decided to go to the city of childhood - Krasnoyarsk. Accidentally caught in a special carriage with high-ranking officials and an oligarch, Daineka witnessed a senseless and brutal murder, and now she, too, is in danger... Daineka did not know: her beloved Jamil follows her on the same train. He has a special mission - to find and deliver to the capital a diamond suspension, which two hundred years ago was presented to Commander Nikolai Rezanov by his beloved Konchita. As you know, Rezanov vowed to return, but died on the road and was buried in Krasnoyarsk...