If you loved Hellraiser, try Altered States
A bridge between a film you've already seen and one most people haven't. Altered States has roughly 3.8× fewer votes than Hellraiser — it's a deeper cut, not a mainstream recommendation. Here's what they share, and what the second one does that the first one doesn't.
What they share
Theyboth carry the dread, surreal mood tags, and they sit in Horror / Thriller territory. If that's the register that drew you to Hellraiser, the second film will land in a comparable space — through a different lens.
What Altered States is
A basement in Cambridge, 1968, the hum of a fMRI’s cooling fan. A neuroscientist fills a black tank with saline, drops in psilocybin tea, sinks himself deeper each night until the tank forgets which way is up. Mirrors hung in the tank show faces not his. Russell’s fevered splice of Freudian horror and cosmic paranoia: one headlong plunge through the membrane of sanity.

