A fire five years ago destroyed everything about Chen Mo.
His wife was killed in the fire, and he was found to be an arsonist born out of love and hatred, and was sentenced to ten years in prison.
In the dark prison, the only belief that supports his survival is to clear his grievances.
However, just three months before his release from prison, an anonymous package broke his peace.
Inside was a photo - in the photo, the woman who was pronounced dead was standing alive in front of a supermarket shelf.
Chen Mo was released from prison early and followed the clues to find the old community.
The door of Room 302 opened. Su Qing held a fruit knife and asked him with empty and unfamiliar eyes: "Who are you?"
She has lost her memory.
She doesn't remember the fire, her dead parents, or her husband Chen Mo, who once loved her deeply.
In order to find out the truth about the "fake death" that year, Chen Mo concealed his identity and moved into Su Qing's home under the name of "repairman".
He endured the fear of her holding a knife to her chest while carefully piecing together the fragments of her memory.
As the investigation deepened, Chen Mo discovered that the fire was not an accident, but a carefully planned murder.
Su Qing's amnesia is not only a protection, but also a prison.
And he must help her regain her memory before the murderer strikes again, even if it means letting her experience the pain of losing a loved one again.
"If memory is the source of pain, then I would rather you never remember me."
"But if I forget you, my life will truly be in vain."
