Midsummer's Equation
Directed by Hiroshi Nishitani
Masaharu Fukuyama reprises his role from 2008's "Suspect X," playing the physicist-cum-detective Manabu Yukawa. The scientist-sleuth arrives in an oceanside town to speak on a panel. But when a man turns up dead outside the inn where he's staying, Yukawa begins to unravel the connections that tie the victim to the activist daughter of the innkeepers, and a precocious boy who first appears on a train—and keeps popping up. It's a Sherlock Holmes mystery with an environmental twist, and one that should please fans of a classic whodunnit.
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Search "Midsummer's Equation" on JustWatchTop cast
Masaharu Fukuyama
Manabu Yukawa
Yuriko Yoshitaka
Misa Kishitani
Kazuki Kitamura
Shumpei Kusanagi
Anne Watanabe
Narumi Kawabata
Jun Fubuki
Setsuko Kawabata
Hakuryu
Hidetoshi Senba
Gin Maeda
Shigeharu Kawabata
Naomi Nishida
Nobuko Miyake
Sansei Shiomi
Shoji Tsukahara
Tetsushi Tanaka
Keiichi Tsukazaki
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Midsummer's Equation is not currently included with a streaming subscription in any of the countries we track, though it may be available to rent or buy digitally.
Streaming availability last checked on August 7, 2026. Catalogues change frequently — data from TMDB and JustWatch.
