Twelve people were invited to participate in an offline script killing, but were trapped in a secret room to start a "seven-day truth trial." Antique dealers, former detectives, suspense writers, etc. All have their own secrets, and they must solve the murder case every day to save their lives. Suspicion and killing are intertwined, and a "script plot" conspiracy emerges. Will everyone be wiped out in the end, or will someone escape with the truth?
