AllMovie

As darkness falls on Halloween night, 12 fearless high school students venture into an abandoned schoolhouse for a long night of spooky fun, and the good times turn terrifying with the appearance of a psychotic serial killer from beyond the grave. In life, Hallows Point High biology teacher Nathaniel Raber was a blood-crazed killer, and in death his killer instinct has only strengthened. After accidentally resurrecting Raber during what was supposed to be an innocent prank, these mischief-making students are about to find out that final exams can really be murder.