Flashback

Running 1h 37m and made in Canada, Flashback (2021) is a Thriller and Mystery film in the 123movies catalog. The cast includes Dylan O'Brien and Hannah Gross; Christopher MacBride directs. 342 votes put it at 5.9/10. 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.