Children...

Five missing children, They never came back.

On March 26, 1991, five boys set off to the mountain to go frog hunting and never come back to their family. While a documentary producer, detective and professor try to solve the mystery of the incident, one of the boys' parents is a suspect.

Park Yong-woo

Kang Ji-Seung

Park Yong-woo

Kang Ji-seung

Ryu Seung-ryong

Hwang Woo-hyuk

Sung Ji-ru

Jung-ho's Father

Kim Yeo-jin

Jung-ho's Mother

Sung Dong-il

Park Kyung-sik

Ju Jin-mo

Director Ahn

Park Byung-eun

Kim Joo-hwan

Kim Gu-taek

Won-kil's Father

Park Mi-hyun

Won-kil's Mother

Lee Jang-yoo

Yong-duk's Father

Seo Ju-hee

Yong-duk's Mother

Jo Deok-jae

Dong-pil's Father (uncredited)

Seo Young-hwa

Dong-pil's Mother (uncredited)

Nam Sang-Baek

Chul-woo's Father (uncredited)

Jeon Kuk-hwan

Professor Cha

Park Seo-yeon

Jin-yeong

Woo Young-taek