Given the question: Generate a question that has the following answer: Hyun soo finds a secret from her past in a secret basement in the house. for the following movie plot: Though having never once in her life seen her father, Hyun-soo has never felt his absence, as there is a perfect mother for her. Her mother is also a renowned plastic surgeon, so she is never lonely, surrounded by girls who want beauty consultations from her mother. But her happiness comes to an end as her friends who have received facial surgery from her mother start to commit mysterious suicides by cutting out their faces. She also starts to feel that there is someone else in the house where she lives alone with her mother. One day, she discovers a hidden basement and there, she comes to find a secret from her past, which will bring great turmoil to mother and daughter.
The answer is:
Where does Hyun soo find a secret from her past ?