The — Evil Cult
"Evil" is a perspective. Most cults don't think they are evil; they think they are the only ones who see the truth.
Identify a "gap" in society that the cult fills. Is there a plague? Economic collapse? A feeling of spiritual emptiness? The Evil Cult
What do they offer that no one else can? This could be safety, a sense of belonging, or "forbidden" knowledge. "Evil" is a perspective