An unknown gunner is on the loose killing off police men that have a connection with a case that has details never revived to the mass media. During a wedding party at a hotel, Ran witnesses the identity of the gunner who tried to kill the last remaining officer. But this caused Ran to lost her memory from an emotional shock of the would be murdered officer. As her memories of all her family, friends, and Conan are wiped out. Everyone tries to find a way to slowly get Ran's memory back as she is the only witness to the face of the gunner. Meanwhile Conan deducts all he can on the case by finding out the backgrounds of the 3 possible suspects and the truth of the case that's "not to be known".
The animation in this movie is all well done. Mostly the details of the rarely shown Tropical Land from the TV anime and Manga are well done. Includes resemblance of Tokyo Disneyland and other Japanese theme parks.
The story, original in many ways. I like how the whole mystery keeps you guessing till the climax of the movie. As well as some suspenseful and exciting scenes that are memorable.
The additional characters unique to the movie are interesting including the suspicious characters on how they interact with the characters we all know.
Overrall, it's as good as it gets in my opinion. Those who are into the series will enjoy it including the Ran fans. Only available in Japanese for the time being.