Aspiring YouTuber Gi-ho stages a fake seance for viral content, but Ja-young joins, seeking her missing sister Seo-woo. In an underground cistern, Seo-woo volunteers as the "possessed," but when she collapses, terror unfolds. Trapped with sinister forces, the students face a deadly fate, leading to a shocking twist.

Cast:YERI, Lee Chan-hyeong, Suh Dong-hyun, Oh So-hyun, Kim Eun-bi, Park Seo-yeon,

Genre:Horror, Mystery, Thriller,

country:South Korea,

Production:EO Contents Group,