built in the 1930s , the old Changi Hospital has been abandoned 20 years . The building was the barracks, and later during World War II the Japanese used the hospital , many prisoners of war here was tortured to death , resulting in lingering , is the most vicious local haunted places in the legend . A group of young filmmakers are allowed to enter the Old Changi Hospital filming a documentary . They invited the priests of movie downloads , there are hobbies of supernatural phenomena and modern instruments to detect supernatural phenomena . A result , they are supernatural events encountered during the shoot , also found that the screen capture is difficult to explain the "ghosting " . ... This thriller like a local version of The Blair 's Witch Project, " the upper half of a lighthearted, satirical documentary account of the ins and outs of the story , the latter part of fall into the general horror film cliche plot .