Is Your Daughter Safe? (1927)

The film was created as a compilation of footage that was, in some cases, nearly fifteen years old, and included stock footage such as medical reels containing footage of venereal diseases and films depicting white slavery. The basic plot was a cautionary tale about a young woman's journey into prostitution and white slavery, but, like the other films of the era, the plot was secondary to the sexual content. Many of the presentations were introduced at the front door, with live nude women in glass booths at the entrances. Inside, the films were usually accompanied by a medical slideshow about venereal disease and a lecture from an alleged sexual education specialist. This was a typical presentation template for the time, and set an example for later exploiters. (Wikipedia)