A few questions....SPOILERS
Maybe this has already been asked but at the end of the movie when Caroline in Violet's body and Luke in Ben's body are taken away, who is going to ensure that they keep taking that medication to keep them in the "stroke" state and not telling anyone what happened? Perhaps some people wouldn't believe them but there are others in that town who are believers in hoodoo where this would be totally believable like the old blind woman for example.
Also, when Caroline goes into Violet's body and Luke already in Ben's body, what happens to Violet and Ben's souls? Do they just suddenly die at that point? Are they the ghosts that appear in the mirrors? The reason why Violet/Cecile doesn't want to look in the mirrors perhaps? Do Justify and Cecile see the ghosts/souls of all the bodies they have taken?
When Caroline/Cecile sees Jill at the end, is she planning on taking over Jill's body being that she wanted to have the body of a young woman of color in the first place? Although I think Jill might catch on pretty quickly what's going on being that she is somewhat familiar with hoodoo and the last call she got from Caroline was her calling frantically telling her it's all true or something along those lines.