A family comedy based on the bestselling Finnish children's book series. Brothers Tatu and Patu are clever inventors from Oddsville, where things are usually done a bit differently. They are invited to the big city to experience Christmas time with by their best friend, 9-year old Veera. Things get complicated when Veera is late to the railway station and the boys venture out on their own. An adventure of positively-nutty incidents ensues, in this funny and warm film about friendship and how it's perfectly okay to be weird or different.