The crowd is all wearing black, like some kind of cult and Black Mass. They murder the baby and hack it apart and eat it, then try to beat/rape the mother to death. All of this is done so the celebrity writer husband can continue to be famous as the sick ritual is some kind of prayer to demons and dark spirits. I think Jennifer is a baby eater as well for being in this kind of sick movie. https://www.youtube.com/watch?v=os8GkE2DvbQ