After escaping from a crowd of zombie-like creatures, Berenger discovers a strange restaurant in the sewers beneath Nighttown called ‘Kathy’s American Café’. What is this ‘chef surprise’ that the owner, Kathy Pedroast, insists on serving? And why does his brother, Gremauld, roar like a terrifying beast from the kitchen? Back in the radio world, Chief Inspector Fry takes his love of polka music to an obsessive level while enjoying his new job as a radio DJ…