PKD went off drugs in the early 1970s, after which he had a painful dry period. By the time he wrote Flow My Tears, The Policeman Said, he had essentially trans

PKD went off drugs in the early 1970s, after which he had a painful dry period. By the time he wrote Flow My Tears, The Policeman Said, he had essentially transitioned to scotch, which probably hastened his early death in 1982. A Scanner Darkly was an autobiographical look back at his drug-abusing years.