The Simulacra - Philip K. Dick

On a ravaged Earth, fate and circumstances bring together a disparate group of characters, including a fascist with dreams of a coup, a composer who plays his instrument with his mind, a First Lady who calls all the shots, and the world’s last practicing therapist. And they all must contend with an underclass that is beginning to ask a few too many questions, aided by a man called Loony Luke and his very persuasive pet alien.