Grim

This is a 90s film about a monster/demon who a group of people bring to this dimension using a Ouija board. It takes them like 10 minutes of a scene just to spell the name “grim”, which is the monster’s name. He can walk through cave walls and pull couches with ladies still aboard down into the mining cave system. They send in mining experts to help figure out why houses are falling into the mine shafts, but Mr. Blow-Things-Up-With-Dynamite gets a little crazy and traps a group of them in the home of Grim. Grim starts killing everyone while they run around in the oddly well-lit caves. It’s not a good movie on any level, so don’t bother.