A knock on your door sets in motion the feeling of anxiety. Should you open? Who, or what, will you encounter if you do? The characters of this continuous-shot anthology film – a billionaire, a commercial pilot, a trainee police officer, and a young single mother – find themselves in critical situations, facing the unknown. To make the right choice they must look deep within themselves, and recognize the true source of their fears.

June 21, 1941. Young lieutenant Kolya Pluzhnikov, having received an appointment to a permanent place of service, arrives in Brest. The crowded waiting rooms of the station and the crowd of people weighed down with luggage do not alarm the young man, filled with joyful hopes. Kolya hurries to the location of his unit - the Brest Fortress... The soldier does not have time to enlist in the personnel of the military, and at four in the morning artillery explosions are heard - the war has begun. He was not enlisted in the ranks of the military personnel of the Brest Fortress, but still took part in the first battle in his life, which lasted ten months.

Victor is the owner of a trendy restaurant, but things are not going well in it. The only hope is for New Year's Eve, because all the tables are already booked, but December 31 comes and the chef and the whole team leave the restaurant. It would seem that everything is gone, and then Olesya, the owner of the kitchen at home in a village near Moscow, appears in the restaurant. She brought cakes that Victor had accidentally ordered from her and even managed to forget about it. Victor offers Olesya to become a chef for New Year's Eve. She refuses, Olesya promised her son Kirill a New Year's tale with fireworks. Victor persuades her to agree, he believes in her and knows that Olesya has a special gift — to awaken the best memories from people with her dishes. Will Olesya and Victor be able to perform a real New Year's miracle: feed all the guests with special dishes and fulfill the promise made to Kirill?