This planned crime is the justification for the novel, but seems incidental to it. The book is really a study of the way people think and their motives for action or inaction. And how someone will quite willingly believe arguments that support actions they want to take. And how a set of logically reasoned steps can lead to an illogical conclusion. This aspect of the book is interesting and insightful, though perhaps a little obvious, but the surprise ending can be spotted a mile off, and the book drags as it approaches the end.