The plum rain in Qingteng Lane always carries a musty smell that cannot be washed away. In order to find his father Chen Jingshan, who has been missing for 5 years, Chen Yu rented the old bungalow where his father once lived. On the third day after moving in, there was a strange banging sound in the attic - the iron door that had been chained for 20 years actually had the lock cut off.
The moment she opened the door, she fell into a dusty mystery: researcher Shen Qinghe's diary was spread out on the desk, and the last page said "Is the world behind the door real?"; In the old photos in the drawer, her father and Shen Qinghe were standing in the laboratory, with secrets hidden behind their smiles; and the landlord Zhao Manzhi's warning that "opening the door will kill scholars" sent shivers down her spine.
