In the dark hospital room lies a present for Soohyun, a dying cancer patient. It is a beautiful wig, which was prepared by Jihyun, Soohyun's elder sister. Admiring the beauty of the wig, Soohyun slowly puts it on. In no time, the reflection of Soohyun in the mirror transforms into an attractive woman full of vitality. But Jihyun feels uneasy with Soohyun's mysteriously recovery after she puts on the wig. She now seems to have become a completely different person. In addition, a friend of Soohyun who has borrowed her wig, is savagely murdered, and now Soohyun murmurs unintelligible words. Something is happening to Soohyun, and Jihyun is the only one who can save her...