When teenage Shelby Register moves to Citrus County, Florida, with her single father and little sister, she's expecting surfers instead of rednecks, but she decides to make the best of it. Things become complicated when Toby, a neglected, loveless boy living with his abusive uncle, becomes her twisted love interest. Toby finds trouble far more elaborate than ordinary delinquency when he enacts a strange, cruel plot on the Register clan. Then Toby realizes that he can't reverse the effects of his 'prank', and his and Shelby's fates hurtle towards tragedy...