The Haunted School is a 2007 Hong Kong horror film directed by Cash Chin and produced by Andrew Lau.
In the present day, under the new education policy, the school accepts four boys (Ben, Charlie, Dick and Keung) as students.
Dick and Sze disappear after being pulled into the "school office" by a strange force, while Charlie and Kei die in the same manner as the previous headmaster and the suicide student respectively.
The surviving students seek answers from their teacher, Miss Fong, who tells them that the strict school rules were actually set by a dean, Yuen See-yum 20 years ago.
Keung, Yat-man, Ben and Siu-fong work together to search for the exact location of the old school office and destroy it once more, as that is the only way to break the dean's evil curse.