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.
as Sung-min
as Su-rin
as Young Sung-min
as Do-gyoon
as Baek-gi
as Young Tae-sik
as Tae-sik
as Jin-sung
as Dr. Min
as Sang-cheol
as Girl Looks Like Su-rin
as News Anchor
as Dean of students
