An elite detective faces off against a mysterious hacker-turned murder suspect while trying to solve personal mysteries.
Kim Woo-hyun / Park Gi-young
Yoo Kang-mi
Jo Hyun-min
Kwon Hyuk-joo
Choi Seung-yeon
Park Ki-young
Han Young-seok
Shin Kyung-soo
Jeon Jae-wook
Kim Seok-joon
Im Chi-hyun
Shin Hyo-jung
Kwon Do-young
Cameo
Byeon Sang-woo
Oh Yeon-suk
Cho Gyeong-sin
Cho Jae-min
Executive Moon
Shin Hyo-jung's fan
