made 600. it's really slow. >> so you've got 2 more days here. >> mm-hmm. you never know. maybe a miracle walk through the door. that's why i stay: because i don't want to just give up. >> while the brothel knows that zoey has worked illegally in the past, she tells me she hasn't quite given up that life. >> what are the biggest differences between working at a legal brothel versus being on your own? >> a big difference, for me, is the money. right before i came here, like, i had a guy that he partied for 2, 3 days, and i made $20,000. >> but you also put yourself at risk. >> yeah, it is getting really dangerous right now. that's why i'm here. >> in every corner of america, women are risking their lives by working in the shadows. violence often goes unreported, but some crimes do make headline news. >> internet escort ads are linked to horrific deaths in detroit. >> at least five men have been arrested and charged with