Runtime: Saturdays 20:55-23:15 (140 minutes | 4 consecutive 35 minute episodes per Saturday)
Release: May 12, 2018 --
Director: Park Yong-Soon
Writer: Hwang Ye-Jin
Country: South Korea
Kim Yoon-Jin (Song Yoon-A) is a former psychiatrist. To do what is best for her husband and son, she quit her job. Kim Yoon-Jin had a daughter, but her daughter died and she carries a sense of guilt over her daughter's death. She wants the best for her son who is about to enter a university. Kim Yoon-Jin decides to hire an expert to help her son enter a good university. The expert is mysterious.
- "Secret Mother" takes over the SBS Saturdays 20:45 time slot previously occupied by "Good Witch."
- Kim So-Yeon has been offered one of the lead role and she is considering the offer positively.
- Kim Tae-Woo, Song Jae-Rim and Seo Young-Hee have been offered the major supporting roles and they are considering the offers positively.