Cao Dong, who was born in the countryside, relied on part-time jobs to support his studies, while Yang Yu, a young man from a wealthy family, fell into a nightmare because of a mysterious piece of black jade. Since Yang Yu returned from traveling, he frequently babbled in his sleep and sang weird old tunes. Later, his roommate Lin Yuanyuan unexpectedly fell from a building and Chen Yining committed suicide by slitting his wrists. Cao Dong discovered that black jade is related to the legend of Xiangxi Soul Jade, which can seal and replace souls. In order to remove the black jade, Yang Yu used Cao Dong's blood to exchange his soul. Cao Dong died tragically. Although Yang Yu got a new body, he also fell into endless confusion.
