Africa (in about the 1970s, perhaps) at its most terrifying, and the willfully blind men who choose to vacation there for kicks.
Lots of horrific violence; explicit sexual acts; and scenes of mutilation, death, and gore. No good guys, though there are men of whom much is admirable, and plenty of bad guys.
I liked Atrocity Week a lot, and I will be rereading it often in the years to come. A raw and very masculine sort of book.
The only thing I was really doubted was the scene with the baboon. Would a baboon really do that? It seems counterintuitive, but I know nothing of baboons.
If it matters, it reminded me some of A Feast Unknown by Philip Jose Farmer. That's high praise coming from me.