Watch A Scanner Darkly (2006) full movie online.
Synopsis: In the near future, as America virtually loses the war on drugs, Robert Arctor, a narcotics cop in Orange County, Calif., becomes an addict when he goes under cover. He is wooing Donna, a dealer, to ferret out her supplier. At the same time, he receives orders to spy on his housemates, one of whom is suspected of being Donna’s biggest customer.
Director: Richard Linklater
Writers: Philip K. Dick, Richard Linklater
Stars: Keanu Reeves, Winona Ryder, Robert Downey Jr.
More info: IMDB, Wikipedia