It's the darkest kind of Outsiders I've ever read about.
I won't argue whether Meursault - the protagonist - have a soul or not, but I'm sure that he sees the world differently and feels differently.
His perspective is summarized in the following lines:
“I have never been able really to regret anything in all my life. I’ve always been far too much absorbed in the present moment, or the immediate future, to think back”
I enjoyed this book, though it frightened me!
I recommend it.