Philip K Dick’s partially autobiographical chronicle of 70s hippie drug culture takes place under the eternal sunshine of southern California. Even the book’s nighttime is saturated with the electric glare of strip mall lighting and the glow of the television screen. And in a society that never switches off the lights, the dark has become internal. A Scanner Darkly is about a descent into the deep fears of our 24-hour consumer society: the twilight of intellectual and emotional collapse. The darkness of insanity.