If you loved Case Closed: The Fourteenth Target, try Detective Conan: The Time Bombed Skyscraper
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.

Case Closed: The Fourteenth Target

Detective Conan: The Time Bombed Skyscraper
What they share
Both films are directed by Kenji Kodama, and they both carry the mindfuck, playful mood tags, and they sit in Adventure / Animation / Crime / Mystery territory. If that's the register that drew you to Case Closed: The Fourteenth Target, the second film will land in a comparable space — through a different lens.
What Detective Conan: The Time Bombed Skyscraper is
Beika City. Cherry blossoms. A taunting phone call. A mysterious bomber targets places linked to Shinichi, threatening mass destruction. Conan races against time, deciphering clues to save not only the city but also his childhood sweetheart, trapped in a rigged skyscraper. Classic Conan, with escalating stakes.