A karaoke in a rural town called "Karaoke Crazies" is run by Sung-wook. Business is slow and when Sung-wook posts karaoke singing along job to boost sales, a girl in early 20's, Ha-suk comes along. She's hopeless game addict and lack of talent but soon she starts to use a special tactic to lure customers in. Then Na-ju, a professional singing along helper insists to help and she is like a savior, turning up the miserable place with her bubbly character. Just when they are ready to come out of shade, little do they know that a serial killer on the loose in town is after something in the karaoke.
Jungdoknoraebang
In the small town's beloved "Karaoke Crazies," Sung-wook struggles to keep the business afloat. In a last-ditch effort, he posts a job advertisement for karaoke singing, which attracts the attention of Ha-suk, a young woman in her early twenties with a crippling gaming addiction.