This is the first book of Gibson's I have read that does not take place in his familiar and well-imagined cyberpunk worlds. Rather, it takes place in our world, in a post-911 reality of marketing and internet obsession, and of mystery spanning across the globe. It is a work of literary fiction of the highest orders
I'm not going to bother with a synopsis. You can read that on the Amazon page for Pattern Recognition, here. I will say, this is a spectacular book, and one that I highly, highly recommend you read.