The Case of the Furuoka Deserted Village Murder

Houtarou and the other members of the Classic Lit Club listen to each production member's theory of what the ending of the unfinished film is supposed to be.

Plot
After talking with the members behind the production of the film by Fuyumi Irisu's class, other than the acting cast, Houtarou and the other members of the Classic Lit Club are given to listening to each production member's theory of what the ending of the unfinished film is supposed to be. Since the scriptwriter fell ill before the filming was complete, the group could not continue filming. To make interviewing of each member easy, Kurako Eba, one member of the class who did the film will invite, in all, the three members one at a time. After a small introduction, each member will give their theory and reasons, thereafter Houtarou, Satoshi, Mayaka and Eru will give their counter of agreement or objection.

Ending to the movie "Mystery" 1st Theory case
The first detective, Nakajou Junya, the assistant director theorized that the culprit used the window to enter the room where Kaitou was and then escape from the window after killing him. And to explain the fact there's no traces of anyone entered from the window, Nakajou believed Hongou when inspected the house in May, there were no summer grass and so she still think using the window was possible. However, his theory has a contradiction, the trick would risked him to be seen by the others from the culprit's perspective.

Ending to the movie "Mystery" 2nd Theory case
The second detective, Haba Tomohiro, the propsmaster theorized based on Hongou's request for a climbing rope, he believed the culprit was Kounosu who is a member of the Rock Climbing Club. And with that, She would climb down from the second floor to the room where Kaitou was via window and she would climb back up through the same route after killing him. However, since Haba haven't watched the video, his theory contradicts with the video since the window can't be opened that easily which makes it impossible to enter the room easily and kill Kaitou.

Ending to the movie "Mystery" 3rd Theory case
The third detective, Sawakiguchi Misaki, the publicity manager theorized that since she believed mystery movies are ones that have a blend of horror theme to it and the fact Hongou was looking for a seventh actor, she believed the culprit would be a seventh character which is a mysterious killer who would continuously killing the other characters until the remaining survivors would kill the killer at the climax and have a happy ending. But, her theory has a contradiction which is Hongou didn't asked for props that would indicate she would turn the story into a horror setting and since she asked Haba for a small amount of fake blood she didn't plan for a large scale of death in the story.

Trivia

 * This episode is adaptation of Ch. 2 "The Murder in the Abandoned Village of Furuoka", Ch. 3 "The Invisible Intrusion" and Ch. 4 "Bloody Beast" from.