When Qing Cheng was a teenager, he was attacked by an unknown mutant monster and lost his family and memory. He was regarded by the villagers as an ominous person who would bring disaster. Ten years later, the mutant monsters resurfaced to sweep Cheng's village. Qing Cheng vaguely realized that these monsters were related to his lost memory. In order to save the village and retrieve his memory, Qing Cheng launched a desperate confrontation with the monsters. But what was unexpected was that there was someone behind the all this. A terrifying human experiment was unfolding in secret, and the whole village was involved in it, facing a catastrophe......

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After some investigation and interviews, the police confirm that the female corpse found in a guesthouse in Jiangcheng belonged to an intern doctor from the provincial hospital. During the investigation, Xu Kai, the captain of the Major Crimes Unit, finds out that Lu Ting's parents, who are also police officers, are involved in the case. But as an unbearably tragic past behind the murder surfaces, Xu Kai discovers that there is someone else behind the scenes....