The show features 3 non-celebrity couples on the verge of breaking up, and it is hosted by Jang Do Yeon, Yang Se Chan, Heo Young Ji, and composer Code Kunst. The couples stay together for a week on Jeju Island. During this time, they exchange partners and go on dates.

The three hosts of the show, Lee-Teuk from Super Junior, Kim Bum-Soo and Yoo Se-Yoon along with the guest singer has to figure out talented as well as tone-deaf contestants given visual, lip-sync and truth-telling evidences. Claimed by Mnet as mystery music show, provides the audience with competition entertainment in an unprecedented manner. Stay tuned for one of a kind music show that will consternate everyone from hosts, judging panels, audience and even the guest singers!