When a group of curious friends discovers an abandoned asylum rumored to be haunted, they inadvertently unleash a series of cryptic events that force them to confront their deepest fears and secrets....

When a young historian stumbles upon a forgotten mansion with an enigmatic collection of echoing balls, she unleashes a series of chilling events that test her resolve and the very fabric of reality....

When a group of students at Songchang Middle School encounters a series of inexplicable events, they must uncover the truth behind the school's haunting past, leading them into a world of the unseen and the unknown....