On October 12, series of still images and additional teaser video for 'Master Key' was released upon its on air date.
'Master Key' is a psychological game show where celebrity casts, known as 'players' will compete with each other through various games to take the final 'master key'.
![BAEK HYUN, Kang Daniel, Ong Seung Wu and Many More! Sneak Peek of 'Master Key'](https://img.sbs.co.kr/newimg/news/20171013/201102281_700.jpg)
![BAEK HYUN, Kang Daniel, Ong Seung Wu and Many More! Sneak Peek of 'Master Key'](https://img.sbs.co.kr/newimg/news/20171013/201102284_700.jpg)
Also in the teaser video, the casts showcased their witty dance moves on set and burst into laughter, raising people's anticipation to the show.
![BAEK HYUN, Kang Daniel, Ong Seung Wu and Many More! Sneak Peek of 'Master Key'](https://img.sbs.co.kr/newimg/news/20171013/201102283_700.jpg)
(Credit= 'SBSNOW' YouTube, SBS Master Key)
(SBS Star)