This story takes place in a small German village, near the Dutch border. It wasn't there before. Now four teenagers have school holidays. They want something, but don't know what. No playing football, no fishing or swimming. When you see an almost empty ditch, the former moat behind a castle, ditch jumping suddenly becomes attractive. And then you're on the other side, suddenly angrily barking dogs come to defend their territory. So our foursome flee into the old turret of the castle. Last used as a prison 100 years ago. Therefore, the slammed door cannot be opened from the inside. There you are. And then history will repeat itself...