Here are seven people who woke up from an old closed ward. They are tied to the bed and a small box falls for an autopsy bed when the number of clocks reaches 00:00. Why are they trapped here and what will happen to them?

• Park Ha-na
• Kim Young-min
• Kim Seo-ra
• Kang Pil-sun
• Sim Eun-woo
• Han Min-chae