Journalist Dima Poluyanov was invited to play a small role in a film based on his book. Once in the film environment, even Dima, who had seen a lot due to his profession, was surprised by the freedom of morals and the boiling of passions both on the set and beyond. The venerable director Prokopenko had an affair with the leading actress Olga Volochkovskaya, but other actresses also visited his room. And the colorful actor Nikola Kryazhin was desperately jealous of Olga, who easily exchanged him for a more profitable passion... The murder of the director right in the train compartment they were returning from filming in St. Petersburg was a real shock for the whole group. After all, the killer is one of them...