One fine December morning, the grumpy spider Karl-Heinz catches the fly Bisy in his web: an exquisite festive feast, tied up in a package à la the spider’s way, it is to dangle in the web until Christmas Eve. Bisy has 24 days to dissuade Karl-Heinz from his festive plans. 24 days to really get on the spider’s nerves. And suddenly the question arises as to who is actually the victim and who is the perpetrator here.