Someone causes a narcotics unit detective to become addicted to drugs. What is the connection between them?
Jang Jae-gyeong
Oh Yoon-jin
Park Tae-jin
Won Jong-soo
Choi Ji-yeon
Heo Joo-song
Park Jun-seo
Oh Soo-hyun
Kim Chang-soo
Oh Chi-hyeon
Jung Yoon-ho
Young Jang Jae-gyeong
Young Oh Yoon-jin
Gong Jin-wook
Jung Sang-eui
Kang Si-jung
Yoo Gyeong-hwan
Jung Yeon-joo
Won Chang-ho
Min Hyeon-woo
Kim U-sung