Frederick Fitzell is living his best life—until he starts having horrific visions of Cindy, a girl who vanished in high school. After reaching out to old friends with whom he used to take a mystery drug called Mercury, Fredrick … Dylan O'Brien, Hannah Gross, Emory Cohen, Keir Gilchrist, Maika Monroe, Liisa Repo-Martell, Amanda Brugel Added on Amazon Prime 2023-02-09. Youtube Trailer