Female college student Han Shuiyue returned to the Han family's old house in Lanyan Town to recuperate due to depression. She met her childhood sweetheart Chen Liang and her condition gradually improved.
While living with her grandmother, aunt, and uncle's family, Shuiyue discovered that everyone in the old house had their own secrets: her father's affair, her cousin's fake pregnancy, her aunt's ferocious appearance... At the same time, she had doubts about the truth about her mother's death from poisoning many years ago. It seemed that the matter was not her mother's suicide, but someone poisoning her.
With the help of Chen Liang, Shui Yue worked hard to find evidence, and the truth of the incident gradually emerged!