In the first half of the 20th century, war spread all over the world. The Japanese army trampled on Southeast Asia, and the British colony of Singapore was naturally not spared. After the fall of Singapore, thousands of people stained the beach with blood in a place called Changi. It was rumored that the local barracks had a torture chamber to torture the people inhumanely. After the end of World War II, the barracks were converted into Changi Hospital, but the rumors of hauntings here continued to spread and intensified. In the end, Changi Hospital was declared abandoned and became a haunted house that no one dared to approach. However, there are still many young people seeking excitement visiting this place. One day, a crew composed of several young filmmakers came here to prepare to shoot a documentary about this hospital. As the filming progressed, their excitement was gradually replaced by fear, and during this period, incredible things happened one after another...