The owner of a mountain sports school, who is battling against a popular all-inclusive holiday card. A sprightly grandmother who lives quite well in her villa. A Dutch tourist vacationing at a campsite in the Karwendel. They have nothing in common except that they all died from an aconite poisoning. And then, in front of Garmisch, a Hungarian truck overturns. Its cargo: cages full of puppies. Commissioner Irmi Mangold and her colleague dive into an environment that rivals that of arms smugglers and drug dealers, as it involves a lot of money...