The psychic king Chen Jin retired for three years and just wanted to protect his daughter and sell exorcism charms. As a result, his daughter was cursed with a life-threatening curse in the middle of the night. In seven days, if the source is not solved, Chen Xiaozhu's soul will be dragged into the bloody crack in the spiritual world. He picked up the mahogany sword and returned to the dark side of the city. While avoiding the pursuit of his enemies, he found out that the curse was actually related to his wife who disappeared three years ago during the entanglement between detective Qin Luming and intelligence dealer Li Hongjian. Pei Banshan, an antique dealer in the old street, left him a message: "If you want to know the truth, first go to the underground auction to buy the 'Yin Yang Contract' left by your wife." Chen Jin must piece together the full picture of the seal before the curse breaks out, while the seemingly friendly Bai Ze is showing his fangs in the dark.
