Urban white-collar worker Zhou Ran (Zhou Dongyu) was defrauded of 550,000 yuan in an online romance. Following the clues left by the scammer, Zhou Ran came to a coastal town and accidentally met the young people Lin Zhiguang (Zhang Yu) and Xu Zhao (Zhang Youhao). Zhou Ran gradually discovered that the two people were hiding clues that he had been deceived, and a revenge plan began... The story of the movie is based on a large number of real cases of "pig killing".