在三年前某个晴朗的假日，还是初中生模样的工藤新一正在公园大秀球技。这时，一个面带忧郁的男子走过来，向他询问3天前是否在公园看到一个男孩。新一摇头否认，男人于是转而询问其他的人。此时新一却发现，就在不远的地方有两个神秘之人密切观察着他们。经进一步了解得知，那个男人名叫秋元宏一，在东京标准局工作，他被警察怀疑杀害了自己的奶奶，而他的供词又漏洞百出，因此秋元才四处寻找能够证明自己不在场的目击证人。 　　经过新一的启发，秋元记起曾有一白衣女子牵着黑色的狗经过他的身边。以此为契机，新一和秋元开始寻找目击证人……

Shinichi Kudo is playing soccer in the park. While there, he sees a man who is trying to confirm his alibi for when his Grandmother was murdered, as he was drunk and passed out in the park at the time, but has no one that can verify his alibi, and he is the prime suspect. Shinichi decides to help. Due getting so concentrated in this case, Shinichi gets into a big fight with Ran Mouri, the longest fight they've ever been in. After Shinichi helps solve the case, both him and Ran and shown walking home from school, both wanting to end the fighting. They both see cherry blossom's, and hear someone sing "Amazing Grace", which ends the week long fight between the two. And Conan narrates how he didn't realize that song was going how this will help in a case 3 years later, in the Full Score of Fear case.