Being a long time fan of the genre, I would have to say Clive Barker's Hellraiser (1987).
Doug Bradley, as Pinhead, and the rest of the Cenobites created an icon of Horror in the 80's. Ground breaking effects courtesy of Bob Keen and Geoff Portass (Image Animation, Pinewood) set the seen for a host of UK based Barker films to follow, like Nightbreed (aka Cabal, 1990)
Followed by numerous sequels over the next ten years, the original Hellraiser and perhaps the second instalment Hellbound: Hellraiser 2 (1988) remain true cult classics.
Doug Bradley, as Pinhead, and the rest of the Cenobites created an icon of Horror in the 80's. Ground breaking effects courtesy of Bob Keen and Geoff Portass (Image Animation, Pinewood) set the seen for a host of UK based Barker films to follow, like Nightbreed (aka Cabal, 1990)
Followed by numerous sequels over the next ten years, the original Hellraiser and perhaps the second instalment Hellbound: Hellraiser 2 (1988) remain true cult classics.