Mourning Grave (2014)

Friend of yours, is she?

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.

Genres: Thriller, Horror

Stars: Kang Ha-neul, Kim So-eun, Kim Jung-tae, Park Doo-sik, Han Hye-rin