According to the Chinese lunar calendar, the gates to the underworld are open from August 14. Ghosts and spirits make full use of their month of freedom to haunt buildings, wrap up their unfinished business among the living, or just wander about aimlessly. Here are some famous urban legends that will send chills down your spine. The Bride's Pool tragedy A magnificent waterfall sets the scene at Bride's Pool, one of the most idyllic spots in Tai Po's Plover Cove Country Park. But when night comes and trees begin to rustle in the wind, the atmosphere can turn quite spooky. It is said that once a bride-to-be drowned at the spot. She was on her way to her wedding when a sudden gust tipped her sedan chair into the water. Some said it was a stormy day and one of the porters slipped. In any case, villagers managed to recover neither her body nor her carriage. Yet many claimed they saw the poor lady in an elaborate red cheongsam combing her hair by a nearby pond called Mirror Pool. Haunting incidents followed. Two boys drowned in the pool one soon after the other - in 1998 and 1999. Five motorcyclists died in accidents on Bride's Pool Road. People claim the bride continues to haunt the premises still searching for her fianc? Haunted house on High Street What is now the Sai Ying Pun Community Complex was once a macabre place. The Victorian-style building was built in 1891 as a mental hospital. During the second world war, the Japanese army turned it into an execution ground. Bodies were buried nearby where the George V Memorial Park now stands. After the war, the block became a mental hospital again. People said that many mentally ill people died within its walls. In the 1970s, the madhouse was abandoned and fell into disrepair. Tales of ghostly sightings have spread ever since. Some said the furniture inside was spotless, as if someone was always cleaning it. Others reported ghostly figures waving from windows at night. It remains uncertain whether the government's move to renovate the house can keep the creepy spirits at bay. The dark side of Murray House The government removed Murray House from Central in 1982 to make way for the Bank of China Tower. It now stands on the seafront at Stanley. You can enjoy a view of the sunset from its terrace with a plate of oysters and a glass of wine. If, that is, you will have the stomach for it once you find out about its murky past. During the Japanese occupation of Hong Kong from 1941-45, it was used as the headquarters of the Japanese military police. As many as 4,000 Hongkongers were executed there. People have since reported hearing people yelling at night. Some have even claimed they were chased by Japanese soldiers. No one wanted to work in the haunted building in the 1960s. It was said the government even hired foreign exorcists to cast out resident spirits.