The Devotion of Suspect X
Keigo Higashino
Ishigami lives next door of Yasuko, with whom he is secretly in love – not that she will ever find that out, of course. However, when Yasuko’s abusive ex-husband Togashi shows up at her apartment and in an unexpected outburst of violence is killed by her, Ishigami senses his chance and offers his help.
A body found at the old Edogawa river is quickly identified as Shinji Togashi. Naturally, his ex-wife is questioned, but her alibi is sound. Somehow, detective Kusanagi of Tokyo Police is not satisfied, however, and he turns – yet again – to his friend Prof. Yukawa for assistance.
In a strange coincidence, it turns out that Yukawa and Ishigami were classmates at University; the former a gifted experimental physicist, the latter a genius mathematician. Soon, solving the murder case changes into a battle of minds and wits, and there can only be one to answer the question: “Which is harder: devising an unsolvable problem, or solving that problem?”
This is perfect light reading for summer time. While Yasuko has commited murder, it was done in self defence, and one cannot help pitying her throughout, especially when Ishigami starts weaving his web. Ishigami, the shrewd teacher of mathematics, is in fact the main and most interesting character, who devises a cunning plan to help Yasuko and from then on pulls the strings from the back. I could not even guess at the solution of the mystery, and when it comes on the last few pages it arrives as a shocking surprise.
Check the book out on amazon – have fun!