Kaoru Utsumi and her ex colleague Shunpei Kusanagi are assigned to solve a case of a murdered man found on a shore. Once again, Kaoru needs help from Manabu Yukawa to solve this case. However, he isn't particularly interested in it, until he learns that his old college friend, whom he considers as a math genius, lives in the neighbourhood of the victim's ex wife and might play a role in the murder. Will they be able to solve this seemingly impossible case? And what's the role of a 'math genius' in it?
The movie Yougisha X no Kenshin is based on the third book of the Tantei Galileo series by Higashino Keigo.
Single mother Hanaoka Yasuko lives with her daughter Misato in a new apartment next to the rather quiet Maths teacher Ishigami Tetsuya.
It doesn't take long until Yasuko's ex-husband finds their new address and comes to pester her, begging for money as he always does. Fed up with her violent father's frequent visits, Misato assaults him and the two women find themselves in a struggle that eventually leaves the man strangled to death.
Just when Yasuko is about to turn herself in for murder the intelligent mathematician Ishigami appears and suggests to help the Hanaokas to cover up their crime. His intentions for doing so remain unknown at first.
Even though we know that the Physic's professor Manabu Yukawa, also known as Galileo, is the main character of the Tantei Galileo-series, it is very hard to take sides in this complex setting.
You easily sympathize with the 'criminals' and end up finding yourself wanting both sides to win. The characters are deep and you feel with them from the start.
The strongest point in the story are the many plot twists.
Some scenes were not in the original book but synergize well with the turn of events.
The only thing that seemed out of line was the female detective Utsumi Kaoru who didn't exist in the book. Personally, I think that her superficial behaviour ruined the deep and intelligent traits of the main characters Ishigami, Yukawa and Kusanagi. However, this might not be such a weak point for people who haven't read the book.
It's probably just my own opinion.
Overall, I can say that this film is an excellent adaption of a brilliant book.
Very nice acting, good directing and suspense building with a great starcast (Fukuyama Masaharu, Shibasaki Kou).
I especially recommend this movie to people who like well thought out plots with truly unexpected twists and a shockingly surprising ending. You will not be disappointed.