The story of two opposites who accidentally met in a St. Petersburg bar, spent the night together, and then were forced to get married due to an unplanned pregnancy. Seven years later, the heroes realize that they have become one of those married couples who are stuck in everyday life, and living together has become just a habit. Wanting to save the marriage for the sake of their son, the couple take a desperate measure - they offer to give each other a little freedom.
