I've been reading a lot of Jim Thompson lately. Perhaps I should be worried. Most people I know say his books are too dark.
Which brings us to the subject of noir. In the 1930s the French word for black was used to describe black-and-white films in which there's more black on the screen than white. Since then noir has come to describe a type of story, as Otto Penzler explains in his Foreword to Best American Noir of the Century:
"Noir works, whether films, novels, or short stories are existential, pessimistic tales about people . . . who are seriously flawed and morally questionable. The tone is generally bleak and nihilistic, with characters whose greed, lust, jealousy, and alienation lead them into a downward spiral as their plans and schemes inevitably go awry."
Noir comes out of the early twentieth century, which also saw the rise of the social sciences: anthropology, psychology, sociology, political science, etc. These sciences said, "If you want to understand human beings, study their circumstances."
The early twentieth century also saw the rise of the naturalistic novel in which characters struggle with their circumstances as well as with each other. Jack London's stories aren't so much man against nature as man subject to nature. In The Jungle, Upton Sinclair writes about working conditions in the meat-packing industry. In Native Son, Richard Wright shows how crime grows out social conditions.
The naturalistic novel asks the reader, "How well would you fare in these circumstances?" I see noir as a sub-species in which the answer is, "Not very well." This prompts compassion.
A lot of people don't like the idea that we are a product of our circumstances, but to some degree we are. To think otherwise is false pride, the kind that goeth before a fall.
Thompson's books are noir but reading them does not depress me. I feel compassion for his characters.