Xu Zhiyuan, a female journalist, was followed and intimidated for exposing a scandal. In order to write his novels with peace of mind and avoid the harassment of gangsters, Xu Zhiyuan chose to live in a friend's house-Bangbei Villa, and changed his mobile phone number. However, something terrible happened. In the art gallery, Xu Zhiyuan's mobile phone received a short message "If you love me, please answer the phone". Zhu Ying, the daughter of her friend Ting He, answered the phone unexpectedly, and her temperament and behavior suddenly became abnormal. Xu Zhiyuan traced the number and found that several people who used it were killed one by one.