It's autumn in the little town of Pickax, Moose County, and the citizens are preparing for a new event: the Great Food Expo. A philanthropic creation of the Klingenschoen Foundation (a.k.a. Jim Qwilleran), the Expo was arranged to bring new restaurants, inns, and food specialty shops to the area. The great event is only a week away when a bomb goes off in the only hotel in town, killing a housekeeper. Luckily for Pickax, Qwilleran and his two sleuthing felines, Koko and Yum Yum, are on the case.