A Bloody Aria

Park Young Sun, a college professor, meets In Jung, one of the prettiest students in his class, by chance at an audition for a big musical project. A reckless womanizer, he asks In Jung to take a ride with him. They drive to a riverside and he attempts to become intimate. However, to his surprise, In Jung declines his advances, and runs away. While waiting for her to return, Young Sun encounters a group of cruel and brutal youths who may have killed In Jung.
(Source: koreanfilm.or.kr)