[[quoteright:184:https://static.tvtropes.org/pmwiki/pub/images/gemini_7.jpg]]

A 1999 horror film from Shinya Tsukamoto, director of ''Film/TetsuoTheIronMan''.

Yukio is a successful doctor living during the Meiji era. His life is turned upside down when he is kidnapped and imprisoned by a mysterious doppelgänger who then proceeds to take over his identity.

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!!'''This movie provides examples of the following:'''

* AlwaysIdenticalTwins
* CainAndAbel: Sutekichi and Yukio.
* DistinguishingMark: Sutekichi has a unique birthmark on his leg that looks like a snake.
* EvilTwin: Sutekichi functions as this although it's a bit complex.
* SeparatedAtBirth: Sutekichi was rejected by his parents due to his birthmark and forced to live in the slums.
* ThrownDownAWell: Sutekichi imprisons Yukio this way.
* TwinSwitch: What Sutekichi does to Yukio.
* UrbanSegregation: The upper class and the slums.
* UnusualEyebrows: Given the setting, the elite are distinguished by a lack of eyebrows.
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