Lin Wanying, a middle-aged cleaning lady, suffers a triple betrayal by her husband Jiang Shijie, her adopted younger sister Lin Qiaoyun, and her son. When her daughter Jiang Yu falls gravely ill and she has nowhere left to turn, she unexpectedly meets doctor Lu Chengzhou and helps him hear the inner thoughts of his son Lu Jin, who is in a vegetative state. The two marry under an agreement, each seeking what the other can provide. Just as they gradually fall for each other, they uncover the truth about a mistaken marriage and switched babies from years ago, ultimately finding their way to a happy life.