The best Nikolay Efremov’s movies

In Moscow, five young people lead the charge against an alien race which has attacked Earth via our power supply.

A beautiful and kind girl, daughter of Baba Yaga, finds a magical stone Alatyr while walking in a field. It transforms her heart into a stone and puts her under a queer curse. She is to be the evil Countess of Stones and live in a stone tower. If the greatest gem-cutter in the world brings the stone of Alatyr to life, though, she'll become the ruler of the world. The Stone Countess, now cruel and selfish, is fascinated with the idea. She starts searching for the best gem-cutters and forces them to work with Alatyr, so the magical stone would become a living thing. Neither of the gem-cutters succeeds, so she kills them. While being imprisoned in her tower, they work on a large book about the secrets of gem-cutting. Each of them edits the book, so it's later named "the Book of Masters".

The action of the story takes place around the Christmas time, when, as usually, the most unbelievable miracles come to life. The story starts with Masha - future doctor and meanwhile an eager student of medical university, her best friend Lilka - a colorful and charismatic young lady who is always in search of man of her life, and Masha's grandfather, Andrei Ivanovich, who is her only relative - a kind but deeply sad amateur painter. The heroes live their ordinary lifes with their worries and laughs until at Christmas Eve they receive a phone call... Three Aunties, who named them self as distant relatives, announce their arrival within an hour. With their arrival the story becomes dashing and somehow magical.