Naughty Justine finds it kind of funny to lock up Mr. Lewis in the storage room. When Headmaster Tom finds him locked, he is being told the whole story and gets furious about Justine misbehaving all the time.
Both men take Justine down for one of the severest canings she ever got. Legs apart and touching her toes, she has to endure a lot of strokes on her bared ass. It's bright red by the time they're done with her!