Plot: Richard Moore takes Conan and Xiaolan to a fancy restaurant for dinner. After entering the door, they found that the table was full of food, but there were no guests. They found Mr. Koushi, the chef, lying on the kitchen floor. After waking up, Mr. Koch told the three people that there were five guests in the restaurant at that time, but they were attacked by gangsters while cooking, and the guests did not know where to go. Richard Moore immediately informed police officer Mu Mu and found out the identity of each guest, but it was difficult to judge where the missing guest went. Just then, the desserts and sundries placed on the table caught Conan's attention.