Young screenwriter Lin Xiao was invited to restore a lost century-old banned play "Blood Banquet". However, she soon discovered that she was not recreating the classics, but setting the stage for an ancient being to return to the world. Weird reflections appeared in the rehearsal hall mirrors, the midnight theater echoed with no one singing, and the actors on the stage went crazy and lost their minds one after another... Her grandmother's dusty diary revealed the truth about a blood sacrifice decades ago: as soon as the play started, the non-human appeared on the stage; When the final gongs and drums sounded, beneath the gorgeous costumes, there was a twisted skin; behind the thick and colorful facial makeup, there was a hungry shadow. Lin Xiao must find a way to rewrite the ending before the horror script she repaired ends. Otherwise, she and all the participants will become the final sacrifice in this "feast".