The cast members of 'The Penthouse' wrap up the first season of the riveting drama while Shin Dong Yeop and Jang Do Yeon moderate with questions and popular theories from viewers. Each of the actors discusses the characters they portrayed and how the director approached the program's suspenseful content while watching behind-the-scenes footage of the drama’s shoots. Clues and previews for the upcoming second season are also presented. (Source: MyDramaList, SBS, Zapzee)