Lina took the blame for her brother and went to prison, where she gave birth to financier Alexander's child, believing it died in a car crash. After release, she worked as a hospital aide and was hired by the Sterling family as nanny to little Leo—a baby with a strange "mother-child bond" illness no one could soothe but her. She didn't know Leo was her son, nor that cold CEO Alexander was his father. Enduring her patriarchal family and fiancée Vivian's torment, she searched for her mother and child. Birthmarks and DNA tests revealed the truth; Alexander publicly broke the engagement, and Lina finally reunited with her son and found love.
