The moment you notice it, it is already too late. See the official trailer for “SMILE”.

The film opens September 30.

You'll never be able to trust a grin again. Dr. Rose Cotter (Sosie Bacon) begins experiencing unusual and frightening events after witnessing something strange and frightening occur to one of her patients. Rose's life is being taken over by overwhelming fear, and she must face her troubled past in order to stay alive and escape this horrifying new reality.