We speak with author Sarah Berman on her book, 'Don't Call It a Cult: The Shocking Story of Keith Raniere and the Woman of NXIVM.'

It was the biggest cult prosecution in nearly a decade. In June 2019, NXIVM leader Keith Raniere was found guilty sex trafficking, forced labor conspiracy, human trafficking and multiple counts of racketeering—including sexual exploitation of a child. But while members swore by the 'self help' organization, rumors of its dark underside emerged.