In the future, humans can peel off and seal traumatic memories through the "Aletheia Center" in exchange for peace of mind. Lin Mo is the center's best "memory archiver". He deals with the deepest human pain day after day and regards forgetting as a kind of compassion. However, when the reverberation of an abnormal memory numbered 734 begins to erode his solid reality, he is forced to embark on a dangerous journey to find out the truth. That memory that does not belong to him is like a key that is about to open up his own dusty past and the huge lie built with forgetfulness behind this perfect world. He will discover that some memories are more deadly than forgetting itself.
