Days after her friends disappear during a trip to a mysterious cave, a girl is approached by a grown man claiming to be one of her missing pals.
강동원
Sung-min
신은수
Su-rin
이효제
Young Sung-min
김희원
Do-gyoon
Kwon Hae-hyo
Baek-gi
김단율
Young Tae-sik
엄태구
Tae-sik
박종환
Jin-sung
문소리
Dr. Min
안지호
Sang-cheol
박지후
Girl Looks Like Su-rin
Kim Ooh-jin
News Anchor
