The continuation of the story of the characters from December 31st Express.

By chance, on the eve of Christmas, completely different passengers with their own problems and dreams board the same train, and now they all have to organize a Christmas dinner right in the carriage in a restaurant. While waiting for the first star, all the passengers unite into one big Ukrainian family. And miracles begin to happen.

May 7, 1901. Warsaw railway station in Saint Petersburg, Russia. A mutilated body is found on the rails. The deceased is identified as Oleksiy Alchevsky – a renowned banker, entrepreneur, and philanthropist, one of the richest people of the Russian Empire’s South. A note, found on the body, attests that it was a suicide.

Rumors, that Alchevsky was killed, start spreading all over the empire.  Realizing that this can potentially lead to a scandal, the St. Petersburg Police Department decides to investigate Alchevsky's death and entrusts the case to a young detective, Vasily Yanovsky. The investigator does not disclose to anyone, that his father was well acquainted with the deceased – so this is personal, and this is a matter of honor.

Vasily understands, that in order to solve this case, it is necessary to know everything about Alchevsky. He begins to dig and delve. Interrogating each suspect (wife, children, competitors) he makes a psychological profile of Alchevskiy, and it helps him to find answers to the main questions - was it suicide? And who has ruined Alchevsky's empire?