When a rookie detective Yoo Ryung's autistic twin sister goes missing, Yoo Ryung joins the subway police team to try and find her.
Shin Yoon-sub
Moon Geun-young
Kim Seon-ho
Jung Yoo-jin
Jo Jae-yun
Ahn Seung-gyun
Han Ji-sang
Lee Jun-hyeok
Song Ok-suk
Ahn Sang-woo
Nam Kee-ae
Kim Jung-young
Song Sang-eun
Park Ji-yeon
Ki Do-hun
Gi So-you
Studio Dragon
Logos Film
tvN
