The year is 1943. Anna Petrova is a combat pilot who was seriously injured. She returned to the rear and works as a leading engineer at an aviation plant, where new Gyrfalcons aircraft are being prepared for testing. The plant's management, unaware of the consequences of her injury, instructs Anna, together with Major Zotov, to drive the prototype of the Gyrfalcon to the front. In addition to the desire to defeat the enemy and return home with a victory, Anna pursues a personal goal. She is determined to get even with Major Briggel, the German pilot who killed her lover.

A beautiful Russian widow in San Francisco wishes to return to Russia after her American husband loses everything in a speculation and shoots his brains out. Along with her personal maid she is given passage to Hong Kong aboard a Russian naval vessel.

Policeman Lesha, who came to the capital from a small provincial town, meets a beautiful student, Dasha. To ingratiate himself with the girl, he introduces himself to her as a law student living in the very center of Moscow. The lovers' relationship is gaining momentum, and now it's getting harder for Lyosha to tell Dasha the truth.…

A writer of sci-fi thrillers lives a happy life: two wonderful children, a caring husband, work she loves, and a cozy home. But one day, it all begins to crumble. A guest moves into the house—and it is as if the whole world turns to ice: her children grow distant, and her husband no longer trusts her. Rita sees things that no one else does: a halo in the sky, frost on the windows, the ghost of a deceased friend. She cannot tell whether she is imagining it all or not. Has she lost her mind, or is everything happening to her real?