Not much to it really. The “mystery” didn’t develop much, there wasn’t a sense of suspense, the “mystery solving” sequences didn’t solve much, the acting wasn’t good, there wasn’t any sense of evil on the satanism.
Really blah. A waste of time for real horror fans, IMHO.
I mostly agree with you, except I think Nicolas Cage gave it his all and was creepily interesting. It’s a shame they didn’t put his role in a better film.