Oh Geun-Tae is a country boy with a booming baritone who is discovered by aspiring singer-songwriter Lee Jang-Hee and thrust into the bustling world of Seoul’s iconic folk music café—C’est Si Bon. Unwittingly, he becomes the third member of the yet-to-debut “C’est Si Bon Trio” and the begrudging buffer between two rival musicians—the vocal genius, Song Chang-Shik, and the heartthrob, Yoon Hyung-Joo. Amidst the smoke and chatter of C’est Si Bon’s youthful clientele, they meet aspiring actress Min Ja-Young and find themselves completely bewitched. Will their muse inspire them to create legendary music, or tear them apart before they even begin?