Who is killing the great pastry chefs of France? Inspector Clouseau is assigned to a high-profile "pastry case"--and he could not be happier, considering his love of croissants. After visiting (delicious) crime scenes in Paris, Nice, and the French countryside, Clouseau and Ponton gain ten pounds and come to one conclusion. These French chefs are being killed (in strange gastronomic ways) because they are all members of an elite team that is preparing to compete in the most lucrative and prestigious pastry competition on the planet: the World Dessert Expo, held this year at the MGM Grand in Las Vegas. The million dollar grand prize has made this competition a world-class event. Over a dozen countries enter their finest chefs, and the French have won every year for the past five, clearly making themselves the target of a rival team or even a rival government (are these deaths the work of jealous chefs or cunning assassins working for an enemy of France?).

It pains Charles Dreyfus when he realizes that Clouseau is the only French inspector who has any experience in dealing with American law enforcement officials. Thus, he is forced to allow Clouseau to once again represent France's finest in America. Clouseau believes undercover work is key and he arrives in Vegas incognito, as a member of the pastry team. Will the intrepid inspector uncover the killer? Or will he himself end up souf-flayed?