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.

'Silk' delivers a highly original and engaging supernatural thriller that successfully blends science fiction with traditional ghost story elements. The film's unique concept of explaining spirits through electromagnetic energy and its suspenseful atmosphere captivated most viewers, with strong performances particularly from Chen Chang. However, opinions divided on the horror execution, with some finding scare scenes poorly crafted, while the scientific explanations struck some as absurd. The writing received mixed reactions regarding plot clarity.