Lee Yong-go is a mentally impaired father with the intellect of a six-year-old, who lives in a run-down house along with his daughter Ye-seung. One day, he gets into a physical altercation with the police commissioner, who has just purchased the last Sailor Moon backpack for his daughter, a gift Yong-go was saving up to buy for Ye-seung. Soon after, the police commissioner's daughter dies in a freak accident, in which she slips on ice and suffers a fatal blow to the back of her head while she is taking Yong-go to another store that sells the same backpack. When he tries to resuscitate her, a woman witnesses him and mistakes him to be molesting her. Yong-go is falsely accused of the abduction, murder, and rape of a minor. The police quickly take advantage of his disability and force him to admit to the crimes, while ignoring exonerating evidence. Yong-go is imprisoned and assigned to Cell No. 7, the harshest cell in a maximum security prison.

Ryu Seung Rong as Lee Yong Gu

Kal So Won as Ye Sung (young)

Park Shin Hye as Ye Sung (adult)

Oh Dal Su as So Yang Ho

Jung Jin Young as Jang Min Hwan

Park Won Sang as Choi Chun Ho

Kim Jung Tae as Kang Man Beom

Jung Man Shik as Shin Bong Shik

Kim Ki Cheon as old man Da Do

Rate- 9.5/10 This movie is amazing. I cried a lot. Prepare tissue if you guys decided to watch it because you definitely will need it. The father's love towards his daughter is gold