An aspiring opera singer In-jeong travels to countryside with her college professor Yeong-seon. She wants to learn more about the outcome of her audition for a part in an upcoming opera performance. The two park on a deserted riverbank to make a campfire. Instead of talking about the audition, Yeong-seon tries to rape In-jeong who escapes to a forest. Yeong-seon wants to leave but his car gets stuck. Three local thugs with motorcycles discover the car and confront him. Meanwhile, In-jeong stops a man on a scooter who promises to take her to a public transport terminal after they meet his friends who are waiting at the river. As it turns out, he is the leader of the group and takes In-jeong back to the riverbank where she reunites with the scared Yeong-seon but the two do not admit knowing each other. The thugs eat roasted pork and have a small talk with the professor when a young student Hyeon-jae rolls out from a bag that was placed on one of the motorcycles. The thug leader starts harassing the boy. His behavior becomes more psychotic when In-jeong voices her disapproval. He orders the thugs to rape her and forces the student and Yeong-seon to fight until one of them drops. Hyeon-jae knows taekwondo and easily defeats Yeong-seon. He then proceeds to beat the thugs. With all of them unconscious, the boy digs a hole in the ground, buries the men up to their chests and pours gasoline on their heads preparing to set them on fire. Yeong-seon runs for help and In-jeong tries to stop the student. While she's talking to him, the leader regains consciousness and manages to hit the boy with a shovel and escape from the hole. After waking up, one of the thugs beats the injured boy so badly that all believe him dead.