During the reign of Renzong in the Northern Song Dynasty, there was an undercurrent surging under the prosperity of Bianjing. A bizarre "Red Thread Beheading Case" broke the tranquility of the capital. The deceased were all imperial officials, and a strange red silk thread was wrapped around their necks. Tantai Jing, a child of a down-and-out family, was forced to get involved in this conspiracy that intertwined officialdom and the world with his extraordinary observation skills and meticulous logical reasoning. He wandered around downtown wine shops and cold yizhuang, peeling off cocoons and threads in layers of fog, vowing to bring justice to the dead, but found that behind the truth lay a huge secret that could shake the Song Dynasty.
