Overview
Jung-Woo (Kim Sung-Su) is a neurosurgeon and also works in bioengineering research. He is married, but has an ongoing relationship with Yoo-Gyeong (Han Go-Eun). She is a doctor and stands by Jung-Woo. Yoo-Gyeong has a mysterious accident one day and her hand is cut off in the accident. Thanks to Jung-Woo's quick thinking, her hand is reattached successfully with surgery. Yoo-Gyeong's health improves after the surgery, but bizarre events take place around her constantly.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 40 | 50 | |
 | 39 | 50 | |
 | 26 | 36 | |
 | 35 | 45 | |
 | 27 | 38 | |
 | 44 | 55 | |
 | 45 | 55 | |
 | 31 | 42 | |
 | 40 | 50 |