Lin Zhou, the chief artist of the cutting-edge technology "Memory Archive System", woke up after a fatal fire, but became the number one suspect in the murder of his partner Xiao Lan. He lost all his memory and was like a blank sheet of paper. In order to find the truth, he was forced to enter his own memory archive and examine the familiar and unfamiliar "self" as a bystander. Every replayed memory is a warm island surrounded by the boundless sea of oblivion. He must discern love and murder in the pieced together past, find himself, or accept a sinful identity he cannot imagine. This is not only an investigation of the case, but also a cruel exile and redemption of one's own soul.