In Our Prime

In Our Prime is a 2022 South Korean drama film directed by Park Dong-hoon. The film stars Choi Min-sik, Kim Dong-hwi, Park Byung-eun, Park Hae-joon and Jo Yun-seo and revolves around two people: a genius mathematician with a hidden past and a student who is failing math. It was released theatrically on March 9, 2022. Premise Lee Hak-seong (Choi Min-sik), a genius mathematician who defected from North Korea in search of academic freedom, hid his identity and story. He lives as a security guard at a private high school where the top 1% of gifted children gather. One day, Lee Hak-seong, who is the number one target to be avoided by students due to his cold and blunt expression, meets Han Ji-woo (Kim Dong-hwi), a high school student who gave up mathematics begging him to teach him mathematics after learning his identity. While teaching Han Ji-woo — who was wandering in a world looking only for the correct answer — how to find the correct solution process, Lee Hak-seong also encounters an unexpected turning point in his life. Cast Choi Min-sik as Lee Hak-sung Kim Dong-hwi as Han Ji-woo Park Byung-eun as Kim Geun-ho Park Hae-joon as An Gi-cheol Jo Yun-seo as Park Bo-ram Tang Jun-sang as Lee Tae-yeon, son of Lee Hak-sung Kim Won-hae Joo Jin-mo Kang Mal-geum as Han Ji-woo's mother