Eleven women awaken to find themselves trapped inside a mysterious room, bound to chairs around a long table with no memory of how they arrived. Among them is Mizuki, a high school student who, like the others, is a complete stranger to her fellow captives. As panic sets in and accusations fly, the group discovers a television displaying a chilling message: they are all participants in a twisted game orchestrated by someone who knows their deepest secrets. The tension escalates as they realize one of them is missing, and the clock is ticking for them to uncover the connection that binds them together. This psychological thriller weaves a claustrophobic atmosphere of paranoia and suspense, forcing the women to confront their pasts and question who among them can be trusted. With each revelation, the line between victim and perpetrator blurs, leading to a gripping puzzle of survival where the ultimate key to freedom lies in uncovering a shared, buried truth.