Killer Nerd

Harold Kunkle, a nerd, is harassed by punks and is the object of ridicule at work. Enamored of a co-worker, he buys a tape series on how to be cool, summons up his nerve, and goes to the co-worker's house, only to find her in the clutches of another co-worker. Kunkle goes out on the town but the same punks that harassed him earlier trash him again, but this time something inside him snaps.