In a remote mansion shrouded in mystery, a group of friends uncover a dark family secret, leading them into a nightmarish labyrinth of echoes and danger....

In a small, fog-enshrouded town, a series of unexplained deaths lead to the discovery of a cryptic message. As the truth unravels, the line between the living and the dead blurs, and the killer's hidden identity comes to light, leaving everyone questionin...

In the eerie dormitory of Wuhu University, a series of inexplicable disappearances sparks a chilling investigation that intertwines with the past and the supernatural....