Russian pop diva Olga Buzova once again trusts the wrong man - Vadim tricks her into buying a loss-making provincial dumpling factory. Olga will have to go to the city of Nizhny Teplyshki to solve the problem and get rid of the unplanned business, but she will face resistance from local residents.

The contents of the Wonderful Doctor’s yellow suitcase cure not only colds and the flu, but also sadness, loneliness, cowardice, and timidity. Petya is a modern, reclusive boy who refuses to go outside; he is afraid of society and other children. His parents decide to turn to the Wonderful Doctor, but his magic suitcase is stolen. From that moment on, a series of adventures begins.