A ghost and a French marquis wander through the Winter Palace in St Petersburg, encountering scenes from many different periods of its history.

The once friendly and loving Gureev family finds itself on the verge of divorce. Spouses Olga and Sergey have moved away from each other, and children Anton and Nastya worry about their parents. Sergey, a fashion photographer, receives an assignment to fly to an exhibition. He is trying to cancel the business trip because it is Nastya's birthday. Olga, once again disappointed in her husband's actions, is ready to file for divorce... But eight-year-old Nastya, their daughter, buys a trip to Armenia for the whole family with the donated money. Fun adventures await the Gureev family, including an immersion in the flavor of a local wedding, which is celebrated for just 7 days and 7 nights. They will also pass their own tests, which will help them understand what is most valuable and important in this life.