About Flashback

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 realizes the only way to stop the visions lies deep within his own memories, so he embarks on a terrifying mental odyssey to learn the truth. Stars Dylan O'Brien, Maika Monroe, Hannah Gross, Emory Cohen, Keir Gilchrist, Amanda Brugel, Josh Cruddas, Sima Fisher, Aaron Poole, Liisa Repo-Martell, Ian Matthews, Maika Harper, Donald Burda, Jackie English, Constantine Meglis, Connor Smith, Andrew Latter, Myles Isen,