A policeman who had inexplicably lost his memory for five years suddenly received a strange anonymous email. The content of the email was very similar to a novel by an unknown author. What is even more bizarre is that the cases in the novel are appearing in the real world one by one... Is all this a coincidence or someone did it on purpose? As the truth is revealed step by step, lost memories flash back, and his relationship with her seems to be no longer a mystery.
