In a misty manor on a rainy night, a seemingly natural death lurks a mystery. Lin Xia, a young genius private detective, joins hands with his journalist friend Su Ran, and is entrusted by Chen Mo, the heir to the manor, to step into this eerie ancient house. The peaceful corpse, water stains, lipstick marks and stolen ordinary ancient paintings in the study, all kinds of contradictory clues are intertwined into a mystery. As she questioned the housekeeper and maid, and rivals in the antique industry surfaced, Lin Xia peeled off the cocoon and discovered that the missing ancient painting was the secret key to unlocking the ancient treasure. Behind the seeming death is a puzzle set up by the butler in collusion with his competitors. When the truth came to light and the criminal was arrested, the suspenseful mystery that took place in the ancient house finally came to an end, and the new challenges belonging to Lin Xia and Su Ran had just begun...
