I have to admit, thanks to the inclusion of Sam Neill (Hunt for the Wilderpeople) in this cast, not to mention the design of Enoch, I couldn’t get Event Horizon out of my head. There are aspects that make the two somewhat brethren, though they are movies with very very different intentions. Mindgamers is much more sf/horror while Event Horizon was really just horror with sf trappings.
Admittedly, though Neill is at the core of this story, the movie is driven by Tom Payne (Luck) and his group of hapless geeks. That group is completed with some competent and committed actors: Dominique Tipper (Girl with All the Gifts), Antonia Campbell-Hughes (Split), Oliver Stark (Into the Badlands), Turlough Convery (Poldark). It isn’t really entirely their fault that the script is oblique and over-written.
Working against or with them (depending on the scene and your interpretation) is Melia Kreiling (Last Tycoon). She brings a cool creepiness to her character, though very little depth.
Director Andrew Goth and writer Joanne Reay are frequent collaborators. You can sense the simpatico from script and vision to screen. The trip, for there is no better way to describe the result, is fluid and done without apology and with little explanation. It is clear that reality is something that isn’t defined crisply from very near the beginning. I actually applaud the guts of that approach, but the result wasn’t particularly great. A Cure for Wellness, for all its faults, tackled the psychological part of that much more effectively.
Basically, no, I can’t recommend this flick. Despite its amusing launch in theaters (a la William Castle) offering a mind-linked experience, the story just isn’t there for all the visual and choreography cleverness. Their locations also became a distraction for me as they were more interesting than the movie and and some were recognizable from other films (in particular, Spectral). So, my recommendation is either watch this highly altered or simply pass it by. Someone will do the theme better justice at some point.