The Evil Inside Her (2019)

Vikki, an innocent young woman falls victim to her own psychosis brought on by a man, Clayton, who's end goal is to rid the world of those different than him. By drugging his victims and not only causing self-mutilation, but horrible violence against anyone around them, he compels others to murder for him. What's supposed to be a relaxing weekend for four friends quickly turns into a fight for survival in the middle of the North Carolina wilderness.