Posted : 2021-06-27 15:41 Updated : 2021-06-27 15:45 Actors Jung Jae-young, from left, Moon So-ri, Kim Ga-eun and Lee Sang-yeob pose for pictures during a press conference for the series, Wednesday. Courtesy of MBC By Lee Gyu-lee Actor Jung Jae-young has returned to the small screen after two years for MBC's comedy-drama "On the Verge of Insanity," which kicked off with the network's highest miniseries premiere rating so far this year, Wednesday. Its first episode scored a 3.9 percent viewership rating, topping the ratings among shows aired in the same time slot ― "Monthly Magazine Home" and "My Roommate is a Gumiho." Directed by Choi Jung-in and written by Jung Do-yoon, known for writing the legal series "Witch at Court," the series follows the roller-coaster ride of office life of middle-aged employees struggling to survive the company's downsizing.