Han Xiaoshi, a young man who was branded by the devil, ran for his life, but ran into the arms of Shen Yan, a priest who was investigating a series of murders - but the "redeemer" under the cross turned out to be a vampire who had lived for two hundred years. The pursuit is a disguise, the atonement is an obsession, the devil's contract gnaws at the soul, and the murder case of the bloody hole in the neck tears apart two hundred years of fate. They are falling into the supernatural abyss at the boundary between the hunter and the prey.
