The Village: Achiara's Secret(2015)

Original title: 마을 - 아치아라의 비밀

Achiara is a quiet, peaceful village with hardly any crime. But on her first day of school there, English language instructor Kim So-yoon discovers a buried corpse. As the townspeople speculate on the identity of the dead person and the reason she was killed, So-yoon and policeman Park Woo-jae become determined to solve the mystery.