Secret Mother is a South Korean television series that follows the story of a woman named Kim Yoon-jin who becomes a secret mother for a wealthy family. Yoon-jin lost her own child in a tragic accident and decides to take on the role of a surrogate mother for a couple who are unable to have children of their own.
As Yoon-jin becomes more involved in the family's life, she uncovers dark secrets and hidden agendas that threaten to tear them apart. She must navigate the complexities of her new role while also dealing with her own grief and guilt over the loss of her own child.
The series explores themes of motherhood, family, and deception as Yoon-jin struggles to protect the family she has come to care for while also seeking closure for her own past. Will she be able to keep her secrets hidden, or will the truth come to light and change everything?