It appears a member of the demonic group the Brotherhood of Seven may be roaming about and killing some of the students. The demon they discover requires the heart and brain of a teenager once ever seven years to remain in human form. They scramble to find the next demon before the next victim is taken. They suspect a named Morgan, but he becomes the next victim. When it is discovered he had a brain tumor, they realize the demon is still on the hunt. They next suspect the wooden dummy owned by Morgan, Sid, but he turns out to be a demon hunter who was trapped inside the body of the dummy by one of the Seven. Sid must kill the last one so he can be freed from this world.