A gas explosion occurred in an apartment in Beitou, Taiwan. The girl Xiaotian lost her father and brother in the disaster and became an orphan. The political star Zeng Wenzheng (played by Dai Liren) has a thriving career and a comfortable family. He and his wife Yixi (played by Guan Ying) live a comfortable life. However, Yixi had a dark childhood and suffered from severe asthma. She refused to have children. For the sake of his career and image, Wenzheng decided to adopt a child. In the end, the lonely Xiaotian came to the couple's home. Xiaotian had been abused by her father, and her life experience was very similar to Yixi's childhood. Since Xiaotian arrived, strange things have happened frequently in the Zeng family, and Yixi has been constantly troubled by childhood nightmares, and the relationship between the couple has become further estranged. Xiaotian's favorite doll seems to hide a great resentment, turning the surroundings upside down...