Giovanni's ice cream shop has the best ice cream in town. That's where Kloos buys his favorite cone: one scoop of lemon, one scoop of chocolate.
But one day, someone gives Giovanni a strange African mask. And from then on, everything goes wrong at the ice cream shop: the espresso machine catches fire, the ice cream machine breaks down. Giovanni believes the mask is to blame. But Kloos immediately senses that someone else is behind these "accidents"...