when south carolina investigators find a missing woman, kayla brown, chained up as a sex slave in a storage container, they quickly realize there's a monster stalking spartanburg county. and with kayla's help, they're going to stop him. and they're going to close the book on seven unsolved murders. >> sheriff's office. sheriff's office. >> sheriff's searching todd's farm. >> are you okay? >> find kayla alive and in chains. >> how are you, honey? >> in a shipping container where kohlhepp had been keeping her alive as his sex slave after murdering her boyfriend in front of her body. cameras capture the stunning moments and candid confessions. >> todd kohlhepp shot charlie carver three times in the chest, wrapped him in a blue tarp, put him in the bucket of the tractor, locked me down here and i've never seen him again. >> minutes later, they also capture kohlhepp at home. >> caleb. >> eating your property. she was locked in a container. okay. she has told us that you shot and killed charlie. you're under arrest right now for kidnaping. if you want to help yourself, tell me where charlie's at