In the late 19th century, the legendary "blue lapis fist", a renowned blue sapphire, sank with a pirate ship off the coast of Singapore. Years later, a wealthy local plans to recover the treasure, and its exhibition at the Marina Sands hotel in Singapore sparks a murder mystery.

Detective Conan: The Fist of Blue Sapphire
A century-old pirate ship's wreckage off Singapore yields a treasure chest, revealing its concealed mysteries.