There have been nine kidnappings in Los Angeles. The kidnapped people come from all walks of life, including priests (Marc Macaulay), prosecutors (Melissa Joan Hart), actors and club owners. There seems to be no connection between them, but the kidnappings are all committed by one person, a man wearing a blue mask and dressed in black. The case shocked Los Angeles, and all police officers were dispatched, but they could not find any clues. At the same time, in a dark and damp basement in every corner of the city, nine kidnapped people ushered in the most painful and difficult moments of their lives. The masked man asked them to think about the reasons for being kidnapped, and then killed one person every 10 minutes until they found the reason. The hostages argued fiercely, attacked each other, or reviewed the mistakes they had made in their lives. Time passed by every second, and the judgment of the god of death was getting closer and closer...