A Bloody Aria (2006)
Original title: 구타유발자들
A Bloody Aria is a 2006 Korean-language thriller movie directed by Won Shin-yun, with a running time of 1h 55m. It stars Han Suk-kyu, Lee Moon-sik and Cha Ye-ryun.
A student and her teacher go to a secluded area in the middle of nowhere to practice open-air singing. There they run into a gang of local thugs who initially seem friendly but slowly reveal their sinister side.