Silk (2006)
Original title: 詭絲
Silk is a 2006 Chinese-language horror movie directed by Su Chaobin, with a running time of 1h 48m. It stars Chang Chen, Yosuke Eguchi and Karena Lam Kar-Yan.
A scientist uses his invention - the "Menger Sponge" - to capture the energy of a dead child's spirit in an old building. In trying to determine why the energy of the ghost does not dissipate, the team discovers the identity and the dramatic story of the boy.