The book would have benefited from a few sensitivity readers. Hurwitz can write great prose (and clever dialogue) when his protagonist isn't stereotyping women & other cultures. As to the plot, though I mostly knew The Who, I guessed incorrectly at The Why, which is imaginative. Part of the M.O. is illogical, which is why The Who is elusive. The use of the amnesia device led to an awful lot of sleeping scenes, which made for a halting pace.