Naked women/clothed men scene WTF?

Was that supposed to be a brothel scene? It's just that I thought that one of the women (the one sitting on a chair) was Amy Adams. And also the house looked like the house that the Cause/cult members had come to visit. Parts of the movie were so strange that I wondered if this was some bizarre sort of exercise that the Cause wants its members to do. It was pretty shocking; suddenly the focus camera angel shifts, and there's a nude woman and then the scene continues and all the women are nude and all the men have clothes on.