At the same time, the mother of plastic surgeon Hyun-soo went to church and accidentally met a lost girl with blue eyes. Because the lost girl mistook her for her mother, the doctor had a bad idea, took the lost girl home and replaced her face with the doctor's own biological daughter Xianxiu. So she ruined her face for the lost girl and gave Hyun-soo plastic surgery. After changing the dough, the doctor originally wanted to take off the oxygen mask to suffocate the lost girl, but later he couldn't bear it any longer, so he locked her in the basement for support.
Hyun-soo probably forgot all about the disfigurement because she was young.
The lost girl has been living alone in the basement. Because the doctor has always given Xianxiu's face as a mask to the lost girl, but she has never really given her face, so when she grows up, she also realizes that the doctor will not give her a real face.
On Hyun-soo 18 birthday, Hyun-soo's friends all came to congratulate her. The lost girl slipped out of the basement and wanted to play with Hyun-soo. She also wanted to go to school like Hyun-soo. She had friends to celebrate her birthday and wanted her beautiful face back. When she didn't get close to Hyun-soo, she was found by the doctor, forced to take her back to the basement, locked her in the house and walked away by herself.
The lost girl was so sad that she hanged herself. And the mother who brought her a birthday cake came in and saw this scene. The cake fell to the ground, which is the beginning you saw. The doctor froze the lost girl in the basement.
The lost girl was unwilling, probably because the doctor had plastic surgery on Hyun-soo's companion Xiujing, but she didn't promise to give her a beautiful face, so she killed Hyun-soo's three companions.
In the end, the doctor felt guilty about the lost girl, or decided to return Xianxiu's face to the lost girl in order to make the lost girl stop resenting and hurting others. The lost girl appeared and stabbed her eyes with a scalpel, but the doctor stopped her.
The doctor told the lost girl that all she wanted was maternal love. Just maternal love.
After a burst of light, the lost girl turned into a little girl with blue eyes. She dragged the doctor out of the basement.
The doctor took a reluctant look at Hyun-soo and left.
It can be said that the doctor died because she left with the ghost of the missing girl.
Therefore, Hyun-soo still used the face of a girl who slipped and was not disfigured.
Although the girl with blue eyes in the basement is strikingly similar to Hyun-soo, she is not the doctor's biological daughter, but Hyun-soo is the doctor's biological daughter.