Zero O'clock Has Arrived

Pillow note: Your name is Lin Mo, you are 24 years old and have lost your memory for two years. He lives by the letter. Mineral water barcodes, bookshelf spines, coffee latte art - they are all secret codes he set himself. He is not guarding against outsiders, but his "past self". Until there was an extra line of unfamiliar handwriting on the note: Don't believe Chen Yu, don't take the blue medicine, you are not sick. The handwriting belongs to him, but he doesn't remember writing it. Someone was helping him pry open the cell door. But is it really safer outside the cell door than inside?