Conan begs Haibara for an antidote to return him to his normal body, but it is not permanent. Later, a woman requests Kogoro discover the owner of a music box. When visiting their house, Ran and Haruna see an old man's shadow fly by and someone was attacked!

Conan, Ran, and Sonoko are out to eat at a café and befriend a couple. Something seems strange about the couple to Ran, so she goes to visit them and learns something unsettling.