The illegitimate son Ning Zhao was forcibly brought back to the treacherous Ningguo Mansion, burdened with discrimination and a mysterious "yin palace pattern". He soon discovered that there was a turbulent undercurrent in this glorious mansion: cries in the middle of the night, the sudden death of the young master, and the disappearance of the maids one after another, all pointing to the evil god "Mother of Deep Diving" enshrined in the mansion. In order to survive and uncover the mystery of his life experience, Ning Zhao must hide the "Yin Palace Mission Book" that he accidentally obtained, and deal with the vigilance of his father Ning Boyan, the jealousy of his brother Ning Xiuyuan, and the strange layout of his housekeeper Uncle Zhou.
He relied on modern wisdom to solve the puzzle of appearance, and gradually unlocked the power of the task book - to pry into the memories of wronged souls, control the dark soldiers and generals, and exchange for strange props. As the investigation deepened, Ning Zhao was shocked to realize that he was actually the "bloodline of the evil son" selected by the evil god, and was recorded on the sacrifice list before he was born. Inside the mansion, the crazy old lady and the sickly maid Lu Zhu each have their own secrets; outside the mansion, the Shen family from Jiangnan is eyeing them. Under the influence of the whispers of evil spirits and the threat of bloodline curse, Ning Zhao worked step by step. Not only did he want to expose Ning Boyan's crimes and fight against the fate of being reduced to a vessel, but he also wanted to fight a way out for himself and his allies in this man-eating mansion. This is a battle for survival on the edge of madness and destiny.
