Rumor has it that in 1985 the authorities managed to make contact with aliens, and this caused a terrible man-made disaster in Chernobyl, which opened portals to another dimension and let terrible creatures into our world.
Baba Prisya (Irma Vitovskaya) is the main character of the Ukrainian fantasy horror film Brama. A strange grandmother communicates with mermaids, considering them her friends, uses hallucinogenic mushrooms, and in her youth, she allegedly even sent 12 SS men to the next world. Together with her, away from civilization, live her daughter Slava, who was abandoned by her husband after the birth of her son, and her grandson Vovchik.
A source: https://oll.tv/ru/films/499544-brama