When blood began to run down Dara Lund's legs at Nature Camp, she thought she was dying. Homeschooled by a protective dad after her mom's mysterious death, Dara wasn't told the facts of life. "It's the Curse," her bunkmates said, not revealing it was her period. "But we can lift it... if you do everything we say." So began their week of torment, making naive Dara do torturous tasks for their amusement. But now, 10 years later, as they embark on their careers, the three tormentors find themselves cursed—so they reunite to track down the likely source: a vengeful Dara. And they'll pursue her to the bloody end.