Doctor Ragin despairs in his attempts to treat the mentally ill until he meets an unusual patient, Ivan. Ivan tells him about his hallucinations, which in fact turn out to be real. Ragin plunges into the crazy world of his patient, but through self-sacrifice he finds hope in this world and becomes the closest person to Ivan.

After the unsuccessful attempt on the life of Baron Wrangel and the death of an intelligence agent, a new cunning plan is being developed to implement the "Crimean Mission". The best agent, Elena Golubovskaya, is appointed to this case. In Crimea, Golubovskaya appears already as El Ferrari - a gifted Italian poet. Her task is to eliminate Wrangel in order to demoralize the white movement, as well as control the operation to steal gold. Her plans are thwarted by Maximilian Ermler, a local newspaper journalist who turns out to be a British intelligence agent.

Ekaterina Martynova, at the age of fourteen, became a victim of Viktor Mokhov, nicknamed the "Skopinsky maniac". The criminal held Ekaterina and her seventeen-year-old friend Elena Samokhina for almost four years in the basement of a garage on his property in the city of Skopin, Ryazan region.