A math genius helps his neighbor cover up a murder — creating the perfect alibi. A physics genius detective tries to unravel it. The twist isn't whodunit but how — and the answer is one of the most heartbreaking reveals in mystery fiction. Japan's bestselling mystery of the 21st century.
Clean — pure intellectual thriller.
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Moods: Brilliant Tragic Twisty Heartbreaking
Tropes: Perfect Crime Genius vs Genius Unrequited Love Mathematical Mind
An inverted mystery — you know who did it. The question is how the cover-up works.
The mathematical thinking drives the plot — but you don't need math knowledge.
Widely considered one of the greatest twists in Japanese mystery fiction.