When his abducted brother returns, seemingly a different man with no memory of the past 19 days, Jin-seok chases after the truth behind the mysterious kidnapping.
Kang Ha-neul
Jin-seok
Kim Moo-yul
Yoo-seok / Choi Seong-uk
Moon Sung-keun
Jin-seok's Father / Mr. Park
Na Young-hee
Jin-seok's Father / Madam Min
Nam Myung-ryeol
Professor Choi
Lee Na-ra
Professor Choi's Wife
Jeong Taek-hyeon
High School Yoo-seok
Jung Chan-bi
Girl
