Seven Days to Chase the Murderer

As a special case consultant, I have the ability to recall the memory of deceased persons. But this time, when I touched the victim's cold skin, what I saw was my own face. "The next one to die is you." In order to protect myself, I started frantically investigating this perfect murder. Only to find that every clue points to myself. Until the seventh day, I discovered our common secret in my memory—— It turns out that the murderer was the person I killed seven years ago.