The action takes place in the Moscow region in an old noble estate, built almost 200 years ago by Scherbatov nobleman. After the October Socialist Revolution and until the end of World War II, the manor was empty. From 1945 to 1953 a special reception center for children of “enemies of the people” was located here. Then from 1953 to 1980, orphanage No. 8 began to work there. After its closure, the manor was again empty for exactly 20 years. At the end of 1999, the building was bought out under a private elite boarding school, in which the action unfolds today. The series tells about the life of students and teachers of the elite boarding school "Logos", located in the old estate of Shcherbatov nobleman in the midst of a gloomy, but picturesque forest. In their closed world, all experiences are much more acute than in ordinary school life. In the story, throughout the series, there are eleven main characters. In the course of the plot, it turns out that each of them has its own secrets and skeletons in the closet.

The year is 1943. Anna Petrova (Katerina Shpitsa) is a combat pilot who was seriously injured. She returned to the rear and works as a leading engineer at an aviation plant, where new Gyrfalcons aircraft are being prepared for testing. The plant's management, unaware of the consequences of her injury, instructs Anna, together with Major Zotov (Alexander Gorbatov), to drive the prototype of the "Gyrfalcon" to the front. In addition to the desire to defeat the enemy and return home with a victory, Anna pursues a personal goal. She is determined to get even with Major Briggel, the German pilot who killed her lover.

A small mining village of Kamenny, the 90s. Everyone here knows the legend about the Mistress of the mountain — the green-eyed Princess Maria Tumanova, the former owner of the emerald mines, who received the nickname Basilisk. Tumanova hid her treasures in the village, and before her death cursed everyone who dared to take possession of them... For many years, the locals even pronounce the name of the princess with caution. And only 17-year-old beauty Alyonka Koshkina defiantly defies the witchcraft of the Basilisk. On the same day, the girl's father finds a jewelry box in the mine. This discovery brings nothing but misfortune to the inhabitants. Who can resist witchcraft and bring back happiness and love?