Philip K. Dick Is Dead, Alas

It is 1982. The United States has a permanent Moonbase. Richard M. Nixon is in the fourth term of the imperial presidency. And an eccentric novelist named Philip K. Dick has just died in California.
Or has he? Psychiatrist Lia Pickford, M.D., is nonplussed when Dick walks into her office in small-town Georgia, with a cab idling outside, to ask for help. And Cal Pickford, a longtime Dick fan stunned by the news of his hero's death, is electrified when his wife tells him of the visit.
So begins a sequence of events involving Cal in the repressive Nixon regime, the affairs of an aging movie queen, a hip but frightened Vietnamese immigrant and an old black man who works as a groom, all leading up to a fateful confrontation between Dick, Cal, and Nixon himself on the moon.