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Old 2012-06-21, 05:34   Link #23
don_Durandal
Zetsubou gunsou
 
 
Join Date: May 2009
Location: Switzerland
Age: 43
The problem here is that we have two different mysteries to solve:
- the original one as intended by Hongou
- a new one that has to make sense after the film crew messed around with the script

As mentioned before the room only has the appearance of being a closed room. There are some ways to circumvent the door being closed. The window is of course irrelevant, and I’ll ignore whatever trapdoor there could be as no such device has been made evident. It’s also likely that the master key is a red herring. The possibilities are:
- Katsuta faked the door being closed
- The key seen next to Kaito’s severed arm is not the room’s key, but the murderer’s
- The murderer made a double of the keys on a previous trip (only Kounosu could have done that since she’s the one who suggested the building)
- There was no murder, and Kaito closed the room himself (quite possible in Hongou’s original script; unlikely in the movie alteration unless Kaito has an unrevealed twin brother, which would break a Knox rule)

Now if murder there was, who could have done it?
- Kounousu: has it easiest since she can climb down the wall with the rope on her side of the building and enter through a window, without risking being seen. The rope is then used to climb back up.
- Katsuta and Yamanishi: have it hardest as no matter where they go through they risk being seen by another party. It would also certainly require them to be accomplices.
- Sugimura and Senoue: same as above

So either:
- Kounosu is the murderer, and she left her key in the room
- Kounosu is the murderer, and Katsuta is her accomplice
There are also possibilities which involve more of the classmates to work together, but that’s stretching it too far to be plausible meta-wise.
Making a “Kounousu killed Kaito and disguised the closed room” hypothesis works quite well. Somehow it doesn’t feel satisfying though; it’s too obvious. It’s the sort of easy speculation Cpt. Hastings or Inspector Japp would make before being deconstructed by Poirot.


Note that a “mystery without murder” is quite possible in Hongou’s original script, especially if one considers her inspiration. It would help knowing if Kaitou was confirmed dead in the novel, as it’s not clear from the script we were allowed to read in the anime.
It does break Van Dine’s seventh rule though.
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