Having received a letter from her mother, who abandoned her and her father many years ago, Daineka, without hesitation, decided to go to the city of her childhood - Krasnoyarsk. Having accidentally found herself in a special carriage along with high-ranking officials and an oligarch, Daineka witnessed a senseless and brutal murder, and now she, too, is in danger... Daineka had no idea: her beloved Jamil was traveling with her on the same train. He has a special mission - to find and deliver to the capital a diamond pendant that was given to Commander Nikolai Rezanov by his beloved Conchita two hundred years ago. As you know, Rezanov vowed to return, but died on the road and was buried in Krasnoyarsk...