In the troubled times of the late Qing Dynasty, scholar Lu Chenzhou formed a blood contract with Qingluo, a century-old female ghost, to save his sick mother. The ghost slave is proficient in writing and weaving fantasy dreams, but he is burdened with the suspicion of exterminating his family. When the Soul-Suppressing Department traces the case to the door, the old case of the salt merchant involves a conspiracy of life and death. What price will the ghost raiser pay in the end? The taboo contract hides an obsession and redemption that spans Yin and Yang.