In the Chertanovo area, known for periodic invasions and attractions, the Prince of Darkness himself suddenly appears. He has grandiose plans, but to implement them, he needs the help of his son, a supermarket cashier, who has a lot of questions for his father from hell. The all-powerful Prince of Darkness will have to build relationships with earthly relatives in order to carry out his plans and teach humanity a lesson.
About the life of different generations of one big family. Timofey and Yulia are raising two children, Vadik and Olya are just preparing for the arrival of their first child, and teenager Pasha lives with his parents and begins to taste adult life. All of them face problems and experience joys that make up the life of a family.