that's it. >> where the machines are, the laundry machines? >> yeah, the laundry machine. we go to the laundry machines. we never knew the back side had beds. >> who goes in there? >> just the boss goes in there. >> oh. does the boss live here or -- >> i don't think so. i don't know. >> you don't sleep back there? >> no, i don't sleep there. >> but there are beds with people's stuff there. >> maybe for a rest or to take a nap. >> health inspector walsh says hidden rooms with beds have been discovered in numerous parlors along with other telltale signs that indicate trafficked women. >> there's a lot of food in the refrigerator, you know, like there to feed like 10, 15 people over say like a month period of time. there are a lot of signs, a lot lingerie, thongs, g-strings. >> after 20 years on the job, massage parlor owners suspected of using trafficked girls have a tough job sweet-talking inspector ed walsh.