A scene from a horror film I saw on television as a child had stayed with me for years.
I didn't know the title. I didn't know who was in it. I barely remembered the story.
But one thing had made a very strong impression.
The main characters escape from some terrifying place where there's a devil, or something like one. They're on a train with their friends, thinking they've finally made it to safety.
Then one of their friends suddenly starts acting strangely.
And the moment they stick their head out of the moving train, it gets taken clean off.
…Quite an image to leave a child with.
What on earth was that film called?
It must have been a foreign film from the eighties or nineties. I was pretty sure I'd seen it on broadcast TV in Japan. I had a feeling it was an American horror film.
That was about all I had to go on.
I wasn't sure I could find it after all this time, but on a whim I decided to ask ChatGPT.
A train, a devil, a head coming off. Was that enough to go on?
To begin with, I gave it only those vague memories.
The AI suggested several films.
Films with devils. Films where people die on trains. Films where a friend suddenly starts behaving strangely.
It even came up with a British television programme in which someone really does stick their head out of a train window and lose it.
No, that wasn't it.
Sure, the head-coming-off part fitted. But the film I remembered had been much creepier than that.
Come to think of it, I had a feeling the enemy had been after the female lead.
When I mentioned that, it suggested more films about devils targeting women.
Still, nothing clicked.
At one point a film involving an underground train came up, but that wasn't right either.
“An American train. The kind that runs outside.”
By this point, even I wasn't entirely sure what I was trying to explain. But it definitely hadn't been an underground train.
Just an ordinary train running outdoors.
And the horror happened just when you thought everyone was finally safe.
That part, I was sticking to.
A film called Beyond the Door III came up
Actually, one of the films the AI had suggested early on was released in Japan as _ザ・トレイン_ (_Za Torein_, “The Train”).
It was a 1989 horror film known in English as _Beyond the Door III_ or _Amok Train_.
Looking into it, I found that it was about a group of American students who visit a village in what was then Yugoslavia and become caught up in a terrifying ritual.
The devil is after a young woman named Beverly.
Even the train they escape onto falls under an evil influence, and horrible things start happening to its passengers, one after another.
So far, that sounded pretty close.
Further searching turned up a scene in which a character called Angel suddenly starts laughing, leans out of the moving train and hits an obstacle beside the tracks.
Could this be it?
Something still bothered me, though.
In my memory, it had happened after everything seemed to be over. And that image of a head coming off was so strong.
A plot description alone wasn't enough to make me certain.
So I asked the AI to find some actual stills from the scene.
Then, suddenly, I remembered
As we kept talking, another scene suddenly came back to me.
“Stop. I've remembered an important clue.”
It wasn't the train or the devil.
It was a whistle.
I was sure one of the characters had played an ocarina, or some sort of small wind instrument.
And I had a feeling this was someone who helped the main characters.
When I told the AI, things quickly started falling into place.
In _Beyond the Door III_, there's a mysterious man named Marius.
He plays a small instrument called a penny whistle and, I learned, has an important role in saving the heroine.
So it wasn't an ocarina.
But I had remembered correctly that someone played a wind instrument.
And he wasn't just some incidental character, either.
By this point, it was getting hard to put it down to coincidence.
Then the AI showed me actual stills published in a film review from overseas.
The man playing the whistle.
The friend who suddenly starts laughing.
The scene of someone leaning out of the train.
Oh. That's it.
At last, I knew the name of the film that had been lurking in a corner of my mind since childhood.
Memory is surprisingly unreliable. But it doesn't get everything wrong
There was something about this whole experience that struck me as interesting.
I'd thought this was a Hollywood horror film from the eighties or nineties.
I'd thought the train was American, too.
But the story is actually set in what was then Yugoslavia, and some of the characters are American students.
Perhaps those impressions had become mixed together over the years.
I'm also not sure I remembered the order of events correctly—whether the horror on the train really did happen at the end of the film.
And as for the detail about the head coming off, I can't say the stills I saw this time confirmed an exact match with my memory.
I suppose that's just how human memory works sometimes.
Yet, strangely, the man playing the whistle had stayed with me.
I'd forgotten the title and the actors, but remembered that little detail.
And it wasn't even something I'd recalled at the start.
It came to me suddenly while I was talking with the AI, thinking, no, not that one; no, not that one either.
The AI didn't get it right in one shot.
It suggested wrong answers, and even after the right film had appeared among the candidates, we didn't immediately recognise it as the one.
But without that conversation, I'm not sure I would have remembered the whistle at all.
The AI was searching for the film. I was searching my memory.
Thinking about it now, perhaps that's what we were doing.
The film I couldn't forget for decades had a name after all
The film I found was _Beyond the Door III_, released in 1989 and known in Japan as _ザ・トレイン_.
It opened in Japanese cinemas on April 21, 1990.
I still don't know which television station aired it when I was a child, or when.
Even so, recognising those images and connecting them with the man playing the whistle finally led me to the film I'd been looking for all these years.
As a child, I had found that scene nothing but terrifying.
Looking into the film now, it sounds as though there's also plenty to poke fun at. Which makes me smile.
That only makes me want to watch it again.
Just a few seconds of film, remembered for decades without knowing its title.
I never imagined that in 2026, a casual conversation with an AI would finally put a name to it.
Now I can call it by its name.
_ザ・トレイン_. _Beyond the Door III_.
That's all there is to the story, really.
But one little mystery that had been sitting in my head for years is solved.
This is a pretty interesting way to use AI, too.
Postscript: Something else from childhood that left a lasting impression
Come to think of it, there's something else I saw as a child that I've never forgotten.
Noroi, from the anime _Gamba no Bōken_ (_Gamba's Adventures_).
It's a television anime from 1975 about a group of mice on an adventure. Noroi is its villain: a pure white weasel.
He left quite an impression, too.
That white body, those sharp eyes, that strange, unsettling presence.
It was supposed to be a children's cartoon, yet I think he could hold his own against any horror film monster.
Was it trauma? Or just a very strong impression?
Given that I still remember both his name and what he looked like, he must have made quite an impact.
I'd forgotten the title of _Beyond the Door III_, but with Noroi, even the name had stayed firmly in my mind.
I feel as though quite a few older cartoons and films were fearlessly scary, even when children were watching.
I'd like to write about this one properly someday, too.
Surely I can't be the only one who was scared of Noroi.
_Gamba's Adventures_: official series information — TMS Entertainment (Japanese)