Why do the "supposed" killer not recognize Walter when he went to jail to talk to him? After that scene we later see that Walter went to college with him and they make eye contact at one point. So, ...
Agatha buys the book (titled The Number 23 written by Topsy Kretts) for her husband Walter as a birthday present. Why does she choose this book? Is it a coincidence? Doesn't she know about the past of ...