With their collective eye on winning a music contest in Seoul, singer Sang-gyu (Seung-woo Cho) and guitarist Man-Shik form a soul-inspired band called the Devils and take their spirited act on the road. Along the way, they adopt a feisty go-go dancer named Mimi (Min-a Shin), who adds visual spice to their live shows and helps the group reach a level they never imagined. This film is based on a true story.