I recently watched the 2023 movie Nefarious and it was fantastic (imo). It's about an atheist psychologist who has to determine if a demon possessed man is fit to face the death penalty.
There's one scene in the movie that changed it from a really good movie to something I'm still thinking about days later now. The scene is with the prisoner, the demon lets him have control so he can order his last meal. He orders a double cheeseburger with bacon and cooked well done, with a thick chocolate milkshake. Through the whole order he is stuttering and begging the guard to make sure he gets it right because its really important to him. There is a subtext here that deeply disturbs me. That is a kids order. That's something a child would think to order for their last meal. The actor is a full grown man but it almost seems like the movie is suggesting that this man as been so thoroughly possesed for so long that he is no more than a child. Or he in this last moment is clinging onto a sliver of innocence as he took on something he didn't truly understand so early.
The explains that for a possession to happen as deeply as seen in the movie, its a series of yeses that comprises the soul further and further. But something about how it was portrayed where the prisoner seemed so childlike deeply disturbed and just has me truly scared and sad for people who mess with things they don't fully understand.