Why do writers write crime novels? Why do readers read them? We’d have to delve into the DSM (Diagnostic and Statistical Manual of Mental Disorders). 😉 We’d need a thousand hours – no, a million.
Let’s look at things from the reader’s side of the page. That’s what really matters: why readers read, not why writers write. It’s a large question. However, I’m going to take a succinct approach. Crime fiction suffuses the zeitgeist. Crime readers have favourite styles: cozy mystery, private investigator, police procedural, etc. Regardless, they’re all fascinated with one thing. Murder. Why?
I see it as a two-headed compulsion. One, readers want to experience the other side of life: death. Two, they want to experience fear. They crave it, but only fictionally: fear of the unknown, fear of the invader, fear of reprisal, fear of something that will disrupt their life – or end it. Fictionally, of course.
PS: Book sellers claim that everything hinges on sales, i.e., on book buyers. I beg to differ. In point of fact, everything hinges on readers. Period. That includes those who borrow from libraries or share a book a dozen times. The more shares (the more readers), the merrier.