Two rival models agree to work together for a fashion magazine’s forensics-themed covershoot, with forensic staff acting as consultants on site. But the next day, one of the models, Li Ziruo, dies violently in the middle of a crowd of fake models in the studio. All the evidence points to the other model, Sun Shini. The deceased was holding a button from Sun Shini’s coat, and they are found to have argued after work the previous day. Forensics find the corpse was not in situ, and that she was strangled with fur before being taken there in a suitcase. Who could have done it? The only intact item in the severely-damaged makeup room will be the most important clue.