I know this is probably a tad too specific, but I'm currently on a binge of Chinese serials with mind-control. I remember a fairly old scene now that used to float around on Youtube, from a Chinese (or maybe Hong Kong) series, that probably dates back to the 2000's, maybe even the nineties.
It involved a girl in a student uniform that had, if I'm not mistaken, a red blazer and some insignia. She got mind-controlled somehow in the scene, which I believe took place in a dungeon or corridor of some kind, and I distinctly remember her eyes glowing red (or maybe purple, though I believe it was red - now that I think about it, it's possible her uniform might have been purple, not red). I also seem to recall stumbling upon scenes from the same series at various points in time, that contained mind-control.
It looked like a fantasy series that took place in some magical school of some kind (hence the magically mind-controlled student).
This is a pretty big shot in the dark, but since I know there are a number of people here that have often explored the Youtube MC clips scene like I have, I figure there's a chance someone might recall what I'm talking about, or at least what kind of clip I'm referring to.
