Aleksandr Shirai

Princess Shirvanskaya is from Baku. She lives in Paris and wants to get back her father’s property who before the revolution owned big oil fields.

Engineer McLean, the prince's wife Shirvanskaya and his lover Rumanescu, who came to the Soviet Union, pretend to be circus actors and act to the detriment of the country. Arranged as a worker in the oil industry, Rumanescu steals blueprints of a military invention from the chemist Petrov. Tom Jackson discovers that the circus performer and the saboteur John are one and the same person. Saboteurs, who will be chased by "red devils" and militia workers. They will try to escape abroad, but they will die in an avalanche near the Turkish border.