Thanks to the mobilization plan (The Infant and the Devil) which was extracted by Joseph von Theofels, the Russian Army suffered a severe defeat in East Prussia.
Having become disillusioned in life, Romanov decides to commit suicide but is rescued by Duke Kozlovsky, who offers Alexei a new, perilous task.
The chief of Russian intelligence, General Vladimir Zhukovsky, decides to send a small group of agents to Switzerland under the guise of actors of a variety show.
Romanov, Kozlovsky and several agents go hunting for von Sommer's secrets ... Alas, the first attempt to get hold of the priceless card file ends tragically.
Kozlovsky and Romanov are ready to surrender, but unexpectedly Romanian dancer Clara Ninetti in love with Alexei and Claire's latest boyfriend, famous Italian poet Rafael D'Arborio come to aid.