A group of scientists is sent to the planet Arkanar to help the local civilization, which is in the Medieval phase of its own history, to find the right path to progress. Their task is a difficult one: they cannot interfere violently and in no case can they kill. The scientist Rumata tries to save the local intellectuals from their punishment and cannot avoid taking a position.

Lena returns to her home in a remote, war-ravaged Armenian village to try and persuade her grandparents to leave with her for safety in Moscow.

Military doctor General Klenski is arrested in Stalin's Russia in 1953 during an anti-Semitic political campaign accused of being a participant in so-called "doctors' plot".

To fight mafia, a biologist and a programmer create a superman robot. An unexpected amendment to the calculations of one of the creators is made by erotic fantasies: superman turned out to be an exact copy of a photo model from a poster.

The film tells the story of the life of an Old Believer community at the beginning of the last century. The drama of an unusual life, a story of love and human passions.