Sound of Freedom and Taken show trafficking overseas. 8 Days shows trafficking in the USA. This is based on actual events. This really does happen.
But, as someone who has been involved with a local organization that fights sex trafficking, I can say this is not the most common way sex trafficking happens in the US.
The stories of BB and Sugar are much more common scenarios that play out in the states.
Although noticeable low budget, the film does a fantastic job of showing how anyone, even a wealthy protective family with a bright teenager, can find themselves in this kind of situation with only a couple poor choices. It also does great at showing how the different roles can play out.
The recruiter, the traffickers, the abusers, the bottom girl, the other victims etc.