At the age of two, Wong Kar Mun went blind. It's eighteen years later and a new and risky corneal transplant operation restores her vision, but a series of inexplicable events leads her to believe there is more than meets the eye to her new gift of sight. Mysterious black-clad figures seem to foreshadow sudden deaths, and horribly disfigured denizens of another side haunt her everyday existence. Unable to define her own identity, she comes to understand that whenever she looks into a mirror she doesn't see herself but instead sees another woman: Ling, the original owner of the corneas. It seems that Mun has inherited Ling's fate and the misery that comes with the ability to see more than she wants to.