Johann Friedrich von Allmen, a private citizen living in Zurich and called “Don John” by his Guatemalan servant Carlos, enjoys life to the fullest. Hardly anyone suspects that the supposed noble title “von Allmen” is derived from the rural name of origin “vom Berg Allmen” in the Zurich Oberland. Nevertheless, he is cultivated, witty and well-mannered and is in a relationship with the wealthy businesswoman Joelle “Jojo” Hirt, but also has a fondness for other beautiful women. However, he often lives beyond his means. This is why von Allmen supplements his coffers by stealing art.