The Resurrected -- an (updated) adaptation of Lovecraft's The Case of Charles Dexter Ward.
A flawed film, certainly; yet I find a lot of strengths in this little effort; and even some of the performances that I didn't originally care for (such as John Terry's) have grown on me, until I find there's a lot more there than I would have originally given credit for. Certainly the exploration of the catacombs is very well done, as (save for a moment here and there) is Chris Sarandon's performance as Ward and Curwen... he actually does Curwen very well (though not quite as HPL envisioned him... yet not altogether inappropriately to that vision).
Let's just say that it's a more intelligently done horror film than most, and one that is very much a "sleeper"; I suggest that, like Dagon, if you don't care that much for it, revisit it after a while, and you may find more there than at first met your eye....