Based on the novel “The Devotion of Suspect X” by Keigo Higashino, this big budget crime thriller proves a great adaptation. Single-mother Yasuko Hanaoka (Yasuko Matsuyuki) kills her ex-husband after he unexpectedly reappears and threatens her and her daughter Misato (Miho Kanazawa). Their math-genius neighbour Mr. Ishigami (Shinichi Tsutsumi) decides to help them, with seemingly little motivation other than a desire not to see them arrested for murder. Ishigami devises a plan that appears to throw off detectives Utsumi (Ko Shibasaki) and Kusanagi (Kazuki Kitamura) who are assigned to the case; that is until they bring in physics professor Yukawa (Masaharu Fukuyama), an intellectual powerhouse comparable to Ishigami, and a former friend from their university days. While suspicions swirl around Ishigami it seems that he has created a puzzle that no-one other than Yukawa may be able to solve.
“Suspect X” inverts the usual crime narrative, by giving us full details of the murder early in the film; and instead focussing on the method by which Yasuko and Ishigami may or may not escape detection. Following fairly closely the plot of Higashino’s novel the film centres on the main cast, throwing up potential clues along the way as the detectives and Yukawa battle to uncover exactly what happened, while Ishigami waits patiently to discover if his ruse will hold. Masaharu Fukuyama and Shinichi Tsutsumi as the erstwhile university friends prove the perfect foils for one another, both highly intelligent and somewhat aloof from everyday society. Ishigami is quiet and sympathetic, leading a drab, mundane existence that is far from challenging his exceptional intellect; while Yukawa’s distance from everyday concerns stems from an absolute dedication to the world of science and logic, shunning the unpredictability of human affairs. The film’s budget and Nishitani’s direction bring to life the world of Higashino’s novel, lingering on certain hints to the final revelation and adding a touch of cinematic magic to a couple of Yukawa’s explanations, such as a sequence in which he explains the concept of doppelgangers (seeing him appear in duplicate) and his first scene which sees him conducting a large-scale (and somewhat unbelievable) experiment to prove a point to detective Utsumi.
While “Suspect X” features several stunning twists in its final third, it is underpinned by an emotional human drama to match the purely intellectual exercise of working out how Ishigami seeks to exonorate his neighbours. It is possible to sympathise with the actions of Yasuko and her daughter, and we are drawn in to hoping that they are somehow able to get away with murder. Ishigami is a more complex character, certainly flawed and vulnerable, but with praiseworthy characteristics of selflessness and intelligence. Yukawa’s role is interesting as he is almost an antagonist at times, working to uncover the criminal deception that will see a mother and daughter potentially imprisoned for murder, albeit arguably committed in self-defence. The film also touches on themes of loneliness, homelessness, and what the purpose of our existence is. Ishigami is a memorable character precicely because he is imperfect, driven by both joy and pain. A highly entertaining film with great production value, cast, and a story that has hidden depths.
