It premiered on MBC TV on October 26 to December 22, 2020 and aired every Monday and Tuesday at 21:20 (KST).

Kim Seo-jin (Shin Sung-rok) is a successful and workaholic construction company director.

Shortly after, his wife, Kang Hyun-chae (Nam Gyu-ri), commits suicide due to the shock.

Han Ae-ri (Lee Se-young) is a hard-working daughter whose mother goes missing in a hospital.

He asks her to prevent the horrific events that destroyed his family and in return, she wants him to find her mother.