An adaptive adaptation of illustrated children's books, in which the pair of heroes, cat Findus and Pettson who looks after him, are preparing for the upcoming Christmas.

Old Pettson and Findus - a cat with the soul of a wayward child, preparing for the star. There is so much to do! You need to find a Christmas tree, clean up, prepare Christmas dishes and do many other serious things! Preparations are not the easiest ones. Outside the window, a snowstorm is raging, and Pettson insists he does not need the help of his neighbors. Findus dreams of Christmas with his friends, but Pettson is ashamed to invite others for Christmas Eve supper. The resolute cat takes matters into his paws. The acting film adaptation of the adventures of the heroes perfectly known from the Swedish series of illustrated books by Sven Nordqvist.