How? Who is Chris? (other than a demon). How has he been brutalised throughout the history of mankind and why is that relevant to the story other than a bit of back-story? Will doing this turn him back to what he was? Mankind’s brutal rampage against….?

Without understanding all of this, I don’t really understand the story. Most demons are bad guys, so you’ve to make sure his quest is something the audience will get behind. For that we need specifics.

We really don’t need his name. I’d rather know who he is.

By telling us he was turned into a demon by God, that suggests to me his goal is to be turned back? Is that the case? If so, make it sound like the goal in the logline, if not, I’d consider removing it altogether. Just referring to him as a *insert characteristic here* demon will do the job.

I’d say this is more Fantasy than SciFi.