Philip K Dick 
Flow My Tears, The Policeman Said 

Jason Taverner has a glittering TV career, millions of fans, great wealth and something close to eternal youth. He is one of a handful of brilliant, beautiful people, the product of top-secret government experiments forty years earlier. But suddenly, all records of him vanish. He becomes a man with no identity, in a police state where everyone us closely monitored. Can he ever be rich and famous again? Or was that life just an illusion?