The students of 11th "A" grade will never forget their prom. And so their parents.

Progressive and talented Natasha and Roma dream of a European wedding by the sea - but Natasha's stepfather procured a different scenario. Rough official of the city administration considers the celebration as a springboard for their careers, and seeks to arrange all the «how to». Young awaits an unforgettable evening in the restaurant «Golden» with a complete set of the tedious rites. Not fight, the guys decide to spend their dream wedding in secret from conservative relatives. But by accident both celebration come together.

When a 7-year-old son of the well-known businessman is kidnapped, he has no idea what awaits him! It turns out that the mysterious kidnapper does not need any ransom, but has only one claim: during the next day father must decide who will die of the two: his child or himself...