Copper Coin Eclipse Moon

"When the seventh copper coin returns, the gate of Yin and Yang will be opened forever." In seven consecutive bizarre murders, the dead held a blood-stained bronze coin in their palms. Detective captain Lan Wangji found that all the evidence pointed to a long-dead cult; folklorist Wei Wuxian deciphered the creepy copper coin spell in ancient books; forensic doctor Xie Lian witnessed the corpse sitting up on its own on the autopsy table; intelligence dealer Huacheng's underground kingdom was bloodbathed by unknown forces. Four men who each have secrets are forced to cooperate, but they don't know that some of them are keys, some are sacrifices, and some... Are not human at all. On a night with a blood moon in the sky, this cursed game that spanned twenty years finally welcomed its last player.