Mo 6/5 pak ma tha phi

A group of students from class 6/5 challenge themselves by entering the most haunted building in their school, "ตึกแดง", which is forbidden due to a tragic incident involving a student who jumped to his death. Led by Nick, the group, including Mark, James, Bew, Oil, and others, aim to explore the paranormal activity, with the ghostly entity known as "ปากหมา" becoming an integral part of their experience.