Miracle in Cell No. 7
7번방의 선물 (original)
The loving daughter of a mentally challenged single father, serving time for a murder he did not commit, sneaks into the prison to reunite with him.
Starring Ryu Seung-ryong, Park Shin-hye, Kal So-won, Jung Jin-young, Oh Dal-su, Park Won-sang, Kim Jung-tae, Jeong Man-sik, Kim Ki-chun, Park Kil-soo
Watch "Miracle in Cell No. 7" on Amazon Prime released in 2013. It's a drama and family movie, and has a rating of 8.1 out of 10 from Imdb which is very high for this kind of movie.