Set in a dystopian future, this film follows an undercover cop, played by Keanu Reeves, who becomes embroiled in a dangerous drug culture while trying to track down the source of a powerful substance known as Substance D. As his identity begins to blur, the line between his role as a law enforcer and his addiction becomes increasingly indistinct. Directed by Richard Linklater, the movie employs a unique rotoscope animation technique, giving it a distinct visual style. The film also stars Robert Downey Jr., Woody Harrelson, and Winona Ryder, adding depth to its exploration of identity and surveillance. For those interested, it can be viewed for free on 123Movies / Movies123.