A Scanner Darkly was released in the year 2006。A Scanner Darkly is also called as Karanligi taramak, Hämärän vartija, A scanner darkly - Un oscuro scrutare, Mirada a la oscuridad。

The L.A. of a not-too-distant future suffers a surge of drug abuse involving a new ultra-addictive and eventually brain-damaging substance simply named "D". Bob Arctor is an undercover narc leading a double life, dutifully reporting to his superiors while effectively having abandoned whatever normal existence he had for a "D" user/dealer career. But this schizophrenic situation and the drug-induced memory and concentration lapses put Bob under mounting stress.

A Scanner Darkly actors and actresses include Keanu Reeves, Ken Webster, Leila Plummer, Natasha Valdez, Robert Downey Jr., Rory Cochrane, Sarah Menchaca, Winona Ryder, Woody Harrelson。