Are there any Speculative Fiction books that you recall that explored obsession as a central issue and theme?
mm
But non-dark themed obsession I can't think of one.
I liked the book. It had its moments where I nearly put it down, but I persisted nevertheless and it worked overall for me.
I'm thinking about a really great short story I read in an anthrology, I can't quite remember the title, but the last line is something like "Now I'm watching Jim/Joe/whatever, and what'isname is watching me." The gist of the story is that it is a journal kept by a guy that is on a long term mission manning a science station on the moon with two other guys. Each of the three astronauts has developed some personality quirks, though the narrator/journalist doesn't notice his own. Basically, he's a neatnick and gets rather obsessed about waste disposal procedures and avoiding contamination of the moon's surface. One of the other astronauts teases him about this quite a bit, expostulating on how it's the destiny of mankind to contaminate the universe and sometimes improperly disposing of trash by simply throwing it out the airlock. The other astronaut builds a complicated nest/hammock for himself and remains aloof, both spatially and by never saying anything when they're arguing.
Things happen. It's a pretty good story. I only wish I could remember more about it. I think that the title was...okay, found it. Now I'm watching Roger. So put "Roger" into the appropriate places in last line I attempted to quote above.
There was a later story that must have been a tribute to this earlier one called...I can't remember. But it featured the adventures of a guy living/working on the moon who always had the misfortune of being teamed up with Roger (or "Rodg", also a verb), a spectacular doofus known to everyone on the base for his apparently innocent but infuriating antics (becoming a victim of such behavior was known as being "Rodg'ed"). The story manages to be much more upbeat despite the tragic death of one of the main characters, which deeply affects the protagonist (and Roger), leading to the exploration of what someone like Roger is doing on the moon. If anyone can figure out what that story was called, I'll be fairly impressed.
Cherryh's books often were very psychological too, and some of her stories centered on various obsessions. And of course you have Moby Dick and all the stories derived from it. Going back to the classic stories is often the best way.