In a house trimmed with holly, two sisters make preparations for their Christmas party. But sadly their assortment of cats cannot attend. So when the guests arrive, upstairs they must go! The banished cats squirm as they smell the aroma of baked treats and hear the crackle of fire, and they don't want to miss another minute of this festive fete. When the restless felines break loose and crash the party below, chaotic hilarity ensues.