The heroine Shen Wei's father, Shen Jianguo, was convicted of the "7.20 Serial Murders" twenty years ago and committed suicide in prison. Shen Wei was admitted to the criminal psychology major in order to solve the case for her father, but she lost part of her memory in a car accident five years ago. After the car accident, she discovered that she had the ability to "dream about the crime scene", but she always kept it as her secret.
