In a city shrouded in fog, a serial killer with unseen fangs terrorizes Tokyo. A young detective must confront her own fears to solve the case before more lives are lost....

In a remote corner of Guizhou, a series of mysterious murders shrouded in the mists of superstition and fear, as a killer known as the Unseen Fang leaves a trail of terror. This is the story of the first murder, a tale of obsession, betrayal, and the chil...