Young Kidaichi's Murder: File 4 - S2-E4
Continuity mistake: When Itsuki retrieves the floppy disk and shows it to the other people in the room, in the first shot the fingertip is on the plastic edge, in the second it's by the metal shutter. The color is off, since a few parts that are plastic are colored like metal. (00:05:00)
Young Kidaichi's Murder: File 4 - S2-E4
Continuity mistake: In the denouement, Kindaichi hands the two pictures to the cameraman and Jinmochi. When he asks if he then changed on a whim, he's still holding the photo himself. (00:12:20)
Young Kidaichi's Murder: File 4 - S2-E4
Factual error: The bittersweet ending is powerful from a dramatic point of view, but also impossible, because law (in Japan, at least) explicitly forbids organs coming from suicide victims to go to their family members, to prevent behaviour exactly like the one displayed here.