The Alchemy Murder Case File 3 - S1-E8
Plot hole: The locked room mystery is original, but besides the fact that it requires melting part of a door on the spot and being able to repair it absolutely flawlessly so that nobody would notice any bump and discolouring and irregularity when they check the lock later investigating the murder, it also requires them to do it in total silence so the other guests don't notice, and part of the process shown involved cutting through it with a screwdriver and bashing it with a hammer - they show that and there's even a loud sound effect for it. (00:18:00)
The Alchemy Murder Case File 3 - S1-E8
Factual error: The Latin text on the supposedly old tome (which is written with a modern font) displays an alchemist diagram. It is a reproduction of a famous drawing meant to portray the Philosopher Stone in the Sylva Philosophorum, but whoever copied it does not know Latin, because certain words are misspelled ("Merceralia" instead of "Mercurialia", "Humides" instead of "Humidus"). (00:10:10)
The Alchemy Murder Case File 3 - S1-E8
Continuity mistake: Mikage is startled by someone knocking at the door. She then puts the knife back on the desk when she realises who is it. The knife and the towel she partially hides it in are in the middle of the desk, but when they tell her that she is a likely target, the items are on the edge of the table. (00:05:10)
The Alchemy Murder Case File 3 - S1-E8
Continuity mistake: When Kindaichi shatters the vase, its remnants and the flowers are positioned on a different spot of the floor between shots. (00:19:20)
The Alchemy Murder Case File 3 - S1-E8
Continuity mistake: When the producer is reading in bed the script for Gold Rush, he holds the book with 3 fingers touching the letters, which turn to 4 fingers in close-up. (00:09:35)
The Alchemy Murder Case File 3 - S1-E8
Continuity mistake: When the paper cup falls to the floor, it spills water between two floor tiles or just on one depending on the shot. (00:05:15)
The Alchemy Murder Case File 3 - S1-E8
Continuity mistake: Kindaichi and Miyuki visit the jittery former idol. She pours herself a drink of water from a bottle that changes shape between shots. (00:05:00)
The Alchemy Murder Case File 3 - S1-E8
Revealing mistake: The setup of the story is the usual; characters forced to coop together at a secluded location, they can't contact the outside world and one of them is a killer. In this case, they are on an island and the only radio they had been on the boat that someone set on fire. However, when one of the suspects shows Kindaichi a photo from their smartphone, the screen shows that they have an active 3G connection. (00:08:00)