Children...

“Five missing children, They never came back.”

Documentary producer Kang Ji-seung (Park Yong-woo) wants to be the one who finally explains what happened to five boys who walked up a mountain near Daegu on March 26, 1991 to hunt frogs and never came home. Lee Kyu-man follows him, a detective, and a professor through the case, while suspicion lands on one of the boys' own parents. Jung-ho's mother (Kim Yeo-jin) and father (Sung Ji-ru) wait in their house, and the film leaves them there.