As Conan, Haibara, and The Detective Boys are playing football, they meet a cat that makes rounds around the Beika area. Following it, they get locked up in a delivery truck, within which they find a dead body. The delivery men talk about how it was an accidental death and they are making rounds and getting people to notice them make up an alibi. As the kids realize that they cannot ask for help directly, Conan comes up with an idea.