​Seung-woo, who is a 20-year veteran rock musician, forms a band named ‘The Monotones’. But the first vocal’s skill was below standard, and the second vocal has been cast in a new soap opera. Finally they meet the third vocal, Sae-young. But Sae-young leaves the band, because his personality is not compatible with Seung-woo. The remaining members try to find a new vocal, but it is hard to find a... see more