A nerdy high school super whiz experiments with a chemical which will transform his guinea pig Mr. Mumps from a gentle pet into a ravenous monster. In a fit of rage against his tormentors at the high school, Vernon Potts goes on a killing spree, eliminating all of those who ever picked on him - the Gym Coach, the School Jock, The Creepy Janitor u0026 his hated teacher, Ms. Grindstaff.

1973 HD 85min PG United States English
revenge murder high school bullying experiment teacher monster transformation classroom outcast

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