In the shadowy corridors of Dalian Polytechnic's Dormitory 401, a silent vigil is kept by an unseen watcher, drawing the fate of those who dare to cross its path....

When a young music student discovers a haunting melody in an old, abandoned mansion, she's drawn into a dark history and a supernatural challenge that tests her courage and the very essence of her talent....

When a series of unexplained events shake the halls of Northern University, a group of students must uncover the truth behind the eerie enigma that threatens to consume their lives....