The young librarian Ksenia, who until recently was solving her numerous family and financial problems, one day becomes the owner of an inheritance - a huge apartment, a bank account and a new Mercedes, and with it many secrets and mysteries. Ksenia understands that in this life nothing happens just like that... Step by step she is approaching the solution, not realizing that a threat is already hanging over her...

Life on Earth has changed after the visit of alien ships hovering in various parts of the planet. Their passengers — biopages or "Vitaliki", as they are popularly called — produce a substance called "prak". Its purpose, as well as the purpose of the aliens' visit, is unknown, but nurse Nina (Irina Salikova) from a quiet provincial town hopes to help her sick father with the help of prak. After contacting Vitalik, Nina learns the truth about extraterrestrial beings, which completely changes her life.

Three Russian sisters work in a tavern in Kars, a city in the east of Turkiye. Two brothers who live in the same city go to that tavern. Elder of the brothers who is married works as a railway worker; controls rails and allows/stoppes trains to pass. The younger brother is an aggressive man who often causes trouble, he marries a local girl, but he doesnt give up night life. The elder brother falls in love with the youngest of the Russian sisters (Irina) and this situation changes their lives. Focusing on the problems of Turkish uneducated men and hard lives of prostitutes, the film takes its name from the freezing cold of Kars as "Soguk" means "cold" in Turkish.