On January 7, SBS representative revealed that there will be a special episode of "Penthouse" aired. According to the representative, the special episode will be titled "Penthouse Hidden Room-Hidden Story" which includes behind-the-scenes footage and a story hidden behind a luxury penthouse that has never been previously revealed in the drama.

"Penthouse" season 1 ended on January 5, with the highest rating of 28.8% nationwide and 30.5% in Seoul. As previously reported, season 2  will begin airing on January 29, after the current Friday and Saturday drama series "Fly, Gae Cheon-yong" ends. For those who are waiting for "Penthouse" season 2 to air, this special episode is expected to bring a big surprise.

The special episode "Penthouse Hidden Room-Hidden Story" will be aired on the evening of January 12.