Seoul, South Korea, 1997. When the young but extremely anxious student Jin-seok, his parents and his successful older brother Yoo-seok move to a new home, mysterious and frightening events begin to happen around them, unexplained events that threaten to ruin their seemingly happy lives. Unable to understand what is happening, Jin-seok wonders if he is losing his mind.
강하늘
as Jin-seok
김무열
as Yoo-seok / Choi Seong-uk
문성근
as Jin-seok's Father / Mr. Park
나영희
as Jin-seok's Father / Madam Min
남명렬
as Professor Choi
이나라
as Professor Choi's Wife
정찬비
as Girl
Choi Go
as Young Yoo-seok
배성일
as Questionable Man 1
이순원
as Questionable Man 2
변동준
as Questionable Man 3
강신구
as Jin-seok's Real Father / Precinct Policeman 4
