Filmmaker Coralie Fargeat’s “The Substance” horror had been under wraps for some time. Described as a body horror seen through a feminist lens, for months, all the French writer/director has said about the movie was that it would “push boundaries with a different kind of violence.” But if the Cannes Film Festival synopsis wasn’t already self-evident, the newly released teaser for “The Substance” basically gives up the ghost.
