Evgenia knew that she and her husband could not afford the old country estate with the unusual name Mukhina Dacha, but she felt a strange feeling - they should settle here at all costs! During her first visit to the estate, Zhenya went down to the basement, where she found a door without a handle or keyhole. Where does it lead and what does it hide? And then she noticed the shadow of some creature, either a person or an animal... These mysterious incidents did not frighten the girl at all - she realized that she simply had to reveal all the secrets of the mysterious house. And by an incredible coincidence, she and Artem became the owners of Mukhina Dacha! However, the mansion was in no hurry to reveal its secrets to them. Until Evgenia discovered in an old safe the diary of her namesake, who lived in the house a hundred years ago...