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The ones who shold never be sean... are now visible.
When the app is launched, a ghost appears. Developed by four young adults, the app becomes the centerpiece of a livestream where they venture into a supposedly haunted mountain to prove its authenticity—only to meet a grim fate.
Genres: Horror, Thriller
Stars: Kim Young-jae, Kim Ju-a, Yang Jo-a, Kim Hee-jung, Park Seo-ji
