This episode is brought to you by Cults, a Parcast Original. For more episodes like this one, subscribe to Cults, free on Spotify! 

In 1999, after the collapse of Consumers Buyline, 39-year-old Keith embarked on a new business venture. But while the product he was selling changed, his approach remained the same. And soon, he began to prey upon the very students he had promised to help.

Learn more about your ad choices. Visit megaphone.fm/adchoices