There is an opinion that a female mathematician is like a guinea pig: neither a pig nor a guinea pig. Nadezhda Nikolaevna Konoplyannikova is a highly experienced mathematician and successful business consultant. She can handle anything and anyone. The children are already big, the work is interesting, but that there is no man ... She does not really suffer from this. She's already used to it, besides, the men around her are all clients of the company, and with them - no, no! While doing work for a troubled client, she crossed the path of a rich, powerful, and resentful man. Moreover, this dangerous type was suddenly carried away by her daughter Katerina, who already had a very worthy groom. Every day new conditions appeared in the problem and confused the matter ... But a mathematician is a mathematician to successfully solve any equation.
