Watch Case Closed: The Fist of Blue Sapphire (2019) Online
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- RUNTIME: 1h 49m
- COUNTRIES: Japan
- Subtitles: 日本語
The world's greatest blue sapphire, the "blue lapis fist", said to have sunk in a pirate ship in the late 19th century, on the coasts of Singapore. A local millionaire plots to retrieve it, and when it's exhibited in an exhibition at the Singaporean Marina Sands hotel, a murder takes place.
