Like many schools, Thailand's Dulan Boys' High School has its own legends that are well-founded but unsubstantiated. These legends are getting more and more intense, making it difficult to tell the truth from the false. One of them is that a student committed suicide by jumping off a building because he failed an exam, and then became a ghost wandering the campus. Nick, who is bold and disrespectful to ghosts and gods, does not believe these rumors at all. One night, he asked seven classmates, including Nick, James, A Biao, and Dex, to explore the campus at night. From the very beginning of the adventure, all kinds of eerie and terrifying things happened one after another. Nick, James, and A Biao thought it was a trap designed by each other in advance, but in the end they found that the ghost who jumped off the building really existed, and this was just the beginning of the nightmare that night. The boy's fearless adventure fell into chaos, and the campus became a haunted house of horrors...