A Femdom Devil cult? Sort of. Let me explain.
These women don’t worship evil, don’t believe in a devil. They seek to align themselves with dark forces conventional people might call Satanic. All universal forces are feminine.
They believe that making men feel pain and anguish enhances their own power. A mystical process the women make no effort to explain or defend.
Their founder was an acupuncturist. Once accidentally she caused a male slave to cry out in agony. Feelings of infinite pleasure and power overwhelmed her. The took the experience as a sign. This cult of female sadists was born and continues to thrive and spread.