On the New Year's eve, a magical atmosphere prevails in the town. But, unfortunately, the parents of Misha Skalkin and Sonia Martyniuk are forced to go on business, leaving their children home alone. That's when the fun adventures begin...

The hero of Mikhail Galustyan, known in our world as KarlOson, lives in a magical and colorful world of metrics - chubby flying big-ear humanoids one meter tall, whose mission - to help kids. Metrics can show themselves to children, but are forced to carefully hide the fact of their existence from boring adults.

Anatoli Novoseltsev works in a ratings company, whose director is an unattractive and bossy woman. An old friend of his, Yuri Samokhvalov, who gets appointed assistant director, wants to make Novoseltsev the manager but encounters objections from Ludmila Kalugina, the director. Samokhvalov then advises Novoseltsev to lightly hit on the boss. Ironically, Novoseltsev and Kalugina fall in love with each other.