The UnXplained: Temporada 1, Episodio 12

Deadly dances. Masters of manipulation. Mass suicides. Murder. Many of the world's deadliest cults ventured down dark, dangerous rabbit-holes of twisted ideologies, persuading their members to kill--sometimes other people, sometimes themselves. Is there any sense to these sinister groups' Or will the unreckoned forces behind such Deadly Cults remain...UnXplained?.