 Hello, I'm Sumi Somaskanda. Today on The Global Story, we're looking at the Brazilian influencer whose secretive sorority has landed her in prison on human trafficking charges. We hear how Cat Torres forged a life as a model which took her from poverty in the favelas to a global audience, and crucially, how she exploited it. A BBC investigation reveals new testimony and even speaks to the disgraced so-called wellness guru herself. That's after the latest world news.