On the Verge of Insanity

On the Verge of Insanity is a 2021 South Korean television series starring Jung Jae-young, Moon So-ri, Lee Sang-yeob and Kim Ga-eun. It aired on MBC TV from June 23 to August 26, 2021 for 16 episodes.

Synopsis

It follows the story of middle-aged office workers struggling to survive in a turbulent workplace.

Jung Jae-young as Choi Ban-seok, a developer in the home appliance division of Hanmyung Electronics. Although he is a veteran engineer, he ends up joining the HR team after a series of ups and downs.
Moon So-ri as Dang Ja-young, the workaholic head of HR team who is respected by her juniors for her outstanding leadership and is trusted by her superiors for her mental agility.
Lee Sang-yeob as Han Se-kwon, the development team leader who is related to the company group's owner.
Kim Ga-eun as Seo Na-ri, the deputy of the planning team.

The first script reading of the cast was held at Changwon International Hotel. The series is set in South Gyeongsang Province and cast a large number of locals from that area in minor roles.