S01E900: Solving Mysteries in a Locked Room

Kogoro, Conan, real estate company president Azuma, secretary Kasai, and office worker Matsuko gather at an abandoned research facility. Azuma has been threatened with murder and hired Kogoro to find the culprit. Officer worker Sannan, auto mechanic Kitao, and waitress Kana, all of whom hate Azuma, have also been invited to the research facility. Kogoro reports the results of his investigation to Azuma and identifies the person who attacked Azuma. However, upon noticing the mistake in Kogoro's reasoning, Conan fires his stun watch at him. Conan closes in on the truth as the Sleeping Kogoro, but...