Kim Sung-ryong (Namgoong Min) is put into jail here for manipulating account books at his previous job in episode 6 of Chief Kim/Good Manager (김과장) (KBS2, 2017). With a little help from Yoon Ha-kyung (Nam Sang-mi) — or, more precisely, CEO Jang Yoo-sun (Lee Il-hwa) of TQ Group and her lawyers — he quickly gets released in episode 7.
This is the former Gangnam Police Station [강남경찰서] — as it was shown in Chief Kim. It turned into Hyundai Autron [현대오트론] in 2018 and the police station moved one block down the road. This building is located in Seoul’s neighborhood Samseong-dong [삼성동] in the Gangnam District [Gangnam-gu/강남구].
12 Teheran-ro 113-gil, Samseong 1(il)-dong, Gangnam-gu, Seoul
서울 강남구 테헤란로113길 12
(지번 서울특별시 강남구 삼성동 171-2)
Geolocation: 37.511294, 127.066578
Samseong Station [삼성역], Seoul Subway Line 2, Exit 8
— submitted by Marion KDL