A Scanner Darkly | | In the near future, the drug epidemic has been out of control. An extremely addictive illegal drug "D-pill" is popular in the United States. Government authorities have to use high-tech surveillance systems to combat the out-of-control situation. Undercover drug agent Fred (played by Keanu Reeves) uses the alias of Barb Art to try to trace the source of drugs. In this way, he lives with small drug dealer Donna Hawthorne (played by Winona Ryder), drug addict Jim Bayeris (played by Robert Downey Jr.), Ernie Rockman (played by Woody Harrelson), Charles Fike (played by Rory Cochran) and others. But in fact, Fred was also deeply attracted to the "D-pill" drug addiction. As his drug addiction deepens, he gradually blurs the line between reality and fiction. Fred, who has lost his mind, continues to pursue the hiding place of the drug lord, unaware that he has been manipulated by the mastermind behind the scenes.