The film is based on the real events that occurred in 1981 Aeroflot Flight 811, when rescuers found a twenty-year-old student who survived after falling from a height of 5 kilometers.
[5] On August 24, 1981, the newlyweds Larisa and Vladimir Savitsky stepped on board the plane following the flight Komsomolsk-on-Amur - Blagoveshchensk, the Soviet Union.
30 minutes before landing, the AN-24 civilian aircraft collided with a Soviet Air Force Tu-16K bomber and fell to pieces at an altitude of more than 5 kilometers above the ground.
[6] The film is a story about a young married couple flying on a plane that crashed as a result of a collision with a bomber half an hour before landing.
[citation needed] Principal photography began in August 2020, taking place on the territory of Kizel, Gubakha, Gremyachinsk and in other areas of the Perm Krai.