A popular high school teacher concocts an extreme plan to deal with the rise of bullying and bad behavior among the student body.
massacre, whistling, set up, hit on the head, suicide note, tape over mouth, public transit, subway, listening device, animal cruelty, website, underage drinking, exercise, school nurse, brawl, corpse, suit and tie, killing an animal, telephone, pool of blood
You will never hear the song "Mack the Knife" the same way ever again after watching Lesson of the Evil.
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