Two 10-year old twins are being babysat by a family friend slightly older than them, while their parents are out for New Year's Eve. As expected, the twins (Milica and Dusko) hate their babysitter (Verica) and she hates them too. The story gets complicated as they take out the dog and it runs into the basement. There they find a school friend, Bobo, who is 'celebrating' in the basement, since he refused to admit to his mother that he has no friends. They take him to their apartment to celebrate together and a little children's romance develops between Milica and Bobo, while Dusko is playing with the dog. It all turns out fine, with a little New Year's gift from the parents - a little puppy! Even the babysitter does not seem that bad in the end...