After his first rotoscoped animation Waking Life, Richard Linklater turned to Philip K Dick's futuristic novel for his second excursion into this form of animation where he shoots live actors and then 'computer paints' over them. Keanu Reeves plays Bob Arctor, an undercover narcs cop who disguises his identity using a 'scramble suit' that transforms him into a walking hologram, changing face and clothes at every stride. He's gone so far undercover that he's become addicted to Substance D, the very drug he's supposedly tracking, and is having a listless affair with supplier Donna Hawthorne. As Arctor splits his days between reporting in to his bosses and mixing with Donna and their fellow addicts, he begins to wonder why his time and energy are being expended on what seems to be a low level operation.