Varvara lives in a small room in a communal apartment in St. Petersburg, she has difficult relationships with neighbors, financial problems, and her husband recently left her. Suddenly she receives news of an inheritance - an apartment in the city of Sovetsk, formerly German Tilsit. But it turns out that the house, received from the grandmother, has big secrets, it is full of secrets, the origins of which lead to the pre-war past. This is not surprising, since it turns out that the previous owner of the property was a Freemason. Varvara, together with two friends, without knowing it, finds herself drawn into someone else's game.