Young unmarried Zhenya and her little son Grisha are preparing for the New Year. Grisha really hopes that Santa Claus will come to visit them. Zhenya also has a dream that sooner or later she will meet a man whom she will love and who will be her son’s father. On New Year's Eve, old friends come to Zhenya — the Ogurtsov couple and the Kalinkin couple. They noisily see off the old year, after which Zhenya tries to put her son to bed. But Grisha does not want to sleep - he was determined to wait for Santa Claus. And, to mom’s great surprise, Santa Claus comes! Although no one called him ....