Class Of Lies
미스터 기간제 (original)
Starring Yoon Kyun-sang, Lee Jun-young, Geum Sae-rok, Choi Yu-hwa, Choi Kyu-jin, Jang Dong-ju, Jeong Da-eun, Byung Hun, Kwon So-hyun, Jun Suk-ho
Watch "Class Of Lies" on Rakuten Viki released in 2019. It's a crime and mystery show, and has a rating of 7.8 out of 10 from Imdb which is usually fine for this kind of show, and is currently available to watch for free.