After Wu Xiao was sacrificed in an explosion during an operation, his soul traveled to the body of a female detective of the same name who was trapped in a "blood coffin", and was unilaterally placed by the other party on whether she would become the same person as the other party if given enough opportunities.
She used her amnesia to hide her identity as a time traveler, and in the future pursuit of the murderer, she formed a partnership with Zhou Yunning, a behavioral analyst who wanted to "monitor" her. They jointly solved many complex cases and finally captured the "blood coffin" murderer.
