When Luo Xue runs away in anger from her boyfriend, she unwittingly stumbles upon a murder case committed by a pair of harmless-looking young boys and girls. Fearing that word will get out, the secretive pair imprison Luo Xue in the attic. As Luo Xue's "best friend" Su Wen intervenes, things become more and more unpredictable and the truth gradually emerges

Lin Feng was stunned and woke up and found himself tied to an old warehouse. A man wearing a strange mask asked Lin Feng: Why did Gao Jianhui commit suicide by jumping off the building? The mask man claimed to be Gao Jianhui, the son of Gao Jianhui. He forced Lin Feng to tell the truth about Gao Jianhui’s death. One person associated with Gao Jianhui emerged. There are relatives who paid bribes to Gao Jianhui, Gao Jianhui’s lover, Gao Jianhui’s partner, and Gao Jianhui’s wife. Lin Feng also said that he overheard that Gao Jianhui was extorted by a man named Sanshi for several million.