Julia's youngest daughter has a birthday. Vovik is preparing a surprise for her - a trip to the sea. He agreed with his Father-in-law and Mother-in-law that he would leave them a granddaughter. His father-in-law is not happy with this idea and wants to dissuade him.

On Police Day, the whole family gathers in an unusual place - the police station. But not as congratulators, but as detainees.

Vovik and Yulia did an ultrasound. Yulia took into account the mistakes of the past and decided to inform the family of the child's gender with the help of a cake with a filling of a certain color. But the father-in-law, through his channels, finds out the sex of the child a little earlier.