★The story is inspired by a real dismemberment case that occurred in Chiaksan Mountain in Korea in the 1980s. In 2023, five extreme cycling enthusiasts went up the mountain to ride their bikes and encountered a desperate survival challenge★Sweeping horror and fantasy film festivals around the world, selling copyrights in more than 115 countries, and attracting worldwide attention★Korean male gods Yoon Yun-sang and Lee Tae-hwan challenged a thriller for the first time, and strange phenomena kept attacking them...Don't go up the mountain easily! You don't know what you will encounter!