The 28th Detective Conan movie. When a researcher is attacked in the Yatsugatake Mountains, Nagano PD’s Kansuke Yamato and Yui Uehara investigate, but Kansuke’s old eye injury flares up — hinting at a dark connection. Meanwhile, Kogoro’s ex-colleague is murdered after looking into a past incident of Kansuke’s. Teaming up with Amuro and Kazami, Conan digs in to uncover the truth behind it all.