

Midsummer's Equation
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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- Status
- Released
- Budget
- —
- Box office
- —
- Language
- Japanese
- based on novel or book
- genius
- murder
- physicist
- summer
- enviromental
- mysterious death
- onsen
- ecentric genius
- ryokan
Top billed cast












Behind the camera
Where to watch
All optionsAvailability for Japan. Provided by JustWatch through the TMDB API.
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Release dates
Hong KongHK
- TheatricalIIA29 Jun 2013
JapanJP
- Theatrical28 Jun 2013
South KoreaKR
- Premiere12Bucheon International Fantastic Film Festival8 Jul 2025
Frequently asked questions
Midsummer's Equation was released on 28 June 2013.
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