Not a silent night at all! Oh dear, mixed-breed dog Bruno has probably eaten a few too many cookies. Now he needs to shed some pounds! To help her friend, cat lady Soja organizes an exciting treasure hunt through the pre-Christmas town. And as if that weren't enough excitement for the cozy Bruno, a mysterious Santa Claus moves in next door. And then another one... and another one! But there is only one Santa Claus, right? Soja and Bruno find this extremely strange; there must be something going on. Together, they decide to get to the bottom of this Santa conspiracy.