If you want to get specific, I suppose 1998's "Dark City" is more of a neo-noir sci-fi film, but there's more than enough horror to score it a place on the list. Reality isn't want it seems. Time isn't what it seems. A spiral murderer is on the loose and strange men in dark coats stalk the streets at night. Oh yes, and Lovecraftian parasites hijack the bodies of the dead in order to carryout a metaphysical investigation. There's more than enough here to blow the mind, plus relish in Richard O'Brian's fantastically creepy performance as Mr. Hand.