Thai director Tiwa Moeithaisong follows up his thriller GHOST DELIVERY with a similar tale of horror, THE SISTERS (PEE CHONG AIR). A popular rock band is on a country-wide tour, and stop at a hotel, only one of many they`ve visited. But this hotel hides a dreadful secret, as the band members become haunted by the terrible, ghostly head of a dead woman. Investigating this vision of horror, they enlist the assistance of a Buddhist monk who recalls the vicious murder of a prostitute years earlier. Can the band discover a way to appease the dead spirit and prevent it from haunting the hotel further? What makes the tale of THE SISTERS even more terrifying is the filmmakers` claim that it is based on a true story.