The young master of Gujian Villa, Shen Yue, was massacred overnight, and the legendary secret book "Eclipse Sword Sutra" disappeared. In order to repay his blood debt, he ignored the instructions of his ancestors and invited the fierce sword "Eclipse" that had been sealed for thousands of years, and re-entered the world to kill. The female swordsman Xie Qingluan met Shen Yue on a narrow road because she was following the murder case of a fellow sect. The two went from suspicion to joining forces, and gradually uncovered the greedy inside story of the six major factions alliance. However, the evil spirit in the sword is quietly eroding Shen Yue's sanity. Bai Ling'er, the reincarnation of the sword spirit, is secretly adding fuel to the flames. The intervention of old enemy Liu Rufeng and the mysterious detective Duan Sanlang makes this revenge turn into a catastrophe that shakes the foundation of the world.
