This year, more than a month before Halloween, Panos Cosmatos is set to unleash his latest film on the horror masses. If you’ve seen Beyond the Black Rainbow, then you have a pretty good idea what to expect, and his sophomore effort is just as nebulous. While the narrative is slightly more linear and discernible, it’s an equally messed up Dungeons & Dragons fever dream that finds Nic Cage in full-on revenge mode. I’m not really sure how to describe any further. Even if I spoiled the story, it won’t keep you from being shocked and surprised at the madness within. So how about this: It’s like a heavy metal…