Yeah that's a good way to put it, 'raw sadism' vs internalised religious sadism. Haven't seen Price in anything else to compare his performance here too, but I thought it was very good. Well, I've probably told you before I don't actually enjoy scary horror movies at all, so it certainly wasn't a criticism! Indeed, we can. Spoiler Yes I did a bit of research after and the real Hopkins died in his best after a period of illness, but you can certainly see why they added the character of Marshall/love interest - it added a human aspect to the witch hunts through their relationship, and an element of Hopkins getting 'what he deserved' rather than just dying in bed, but as you say, it's certainly not a happy ending either. I agree the film did an excellent job of conveying the way he was consumed by the need for revenge, to the expense of everything else.