After having been captured in a Crimea during a failed attempt to flee overseas, Leo returns in Petersburg for Kira.
Alida Valli
as Kira Argounova
Fosco Giachetti
as Andrej Taganov
Rossano Brazzi
as Leo Kovalenski
Emilio Cigoli
as Pavel Sjerov
Giovanni Grasso
as Tishenko
Silvia Manto
as Mariska
Gioia Collei
as Acia Dunaev
Lamberto Picasso
as Il capo della G.P.U.
