Silk

“The World's First Caught Spirit.”

Hashimoto (Yosuke Eguchi), a scientist, wants proof that a ghost can be captured, and he builds the Menger Sponge to do it. His team, including Tung (Chang Chen), traps the energy of a dead child in an old building, then finds it will not fade. Su Chaobin sends them looking for who the boy was, and each answer puts the people holding the device in more danger.