Flow My Tears, The Policeman Said

Grappling with many of the themes Philip K. Dick is best known for, identity, altered reality, drug use, and dystopias, Flow My Tears, the Policeman Said is both a rollicking chase story and a meditation on reality. Jason Taverner, talk show host and man-about-town, wakes one day to find that no one knows who he is. In a society where lack of identification is a crime, Taverner must evade the secret police while trying to unravel the mystery of why no one remembers him.
Annotation
Stunningly plausible in its portrayal of a neo-fascist America, where everyone informs on everyone else, this Orwellian novel bores deeply into the bedrock of the self--and plants dynamite at its center. Fifty or a hundred years from now, (Dick's) world will stand alone on its own terms.--Norman Spinrad.