The little dragon Coconut and his friend Matilda go on a trip to the forest to gather dragonweed. But they get caught in a storm and find shelter in a dark, deserted tower. It's dry there, of course, but it's also a bit scary. It's impossible to relax and sleep in front of the fireplace. Because at the exact moment the clock strikes twelve, a cold wind starts blowing through the corridors and the hall of the tower. And something happens that scares the two friends a lot...