Mourning Grave (2014)
Original title: 소녀괴담
Mourning Grave is a 2014 Korean-language thriller movie directed by Oh In-chun, with a running time of 1h 30m. It stars Kang Ha-neul, Kim So-eun and Kim Jung-tae.
A boy who can see ghosts moves to a small town, where he befriends a female ghost. The two work together to investigate a masked ghost who is murdering students one by one.