Sacrifice is the sequel to Executive Pink, but I didn't realize when I picked this book as my introduction to Paust's work. He does drop in the necessary backstory as you go along, though, so it's possible to follow the storyline without reading the first.
Sacrifice is the story of a former special prosecutor who's been framed, sent to prison....and is offered an 'out' if he consents to be the test subject for a drug that may change the patterns of human thought worldwide. The drug also has positive sexual side effects, though, so many are viewing it as a cash cow rather than a way to save humanity from greed and war. Powerful people will do just about anything to stop the drug manufacturers from succeeding.
The story is written as a series of weblog entries from the main character, who has already taken the mind-altering drug which renders him more logical and more globally-minded. He's apparently in hiding even now as he recounts what happened during the drug's development. I found it interesting how his voice changes, where he has extraordinarily complex sentence structure and vocabulary while ruminating, and yet early on in the story he relates himself as still thinking and talking like an undrugged (normal) human.
I did find the plot a little difficult to follow in places, but during sequences when the story question was pretty much linear (ie, run for your life from the bad guys) it moved along at a nice clip. We also have some interesting characters like a recluse who's living in the woods off the grid...who turns out to be a lot more than just a maniac hermit, and a bitter doctor who's...well, he's a bitter doctor, but I liked him a lot because he reminded me of McCoy.
In the end, it was a fun read, and I'm glad to have enjoyed it.