The Two Who Can't Return Anymore (1) Meitantei Conan : Season 1 Episode 429

A client named Atsushi Misumi asks Kogoro to search for his girlfriend, Ami. Deducing from her last words, they realize Ami is waiting for Misumi at the place where they first met. They are driven by Misumi to Gunma Prefecture where they find Ami in a sealed up car dead.